Rearrangement of soil particles

Rearrangement of soil particles

Rearrangement of soil particles
Introduction:
Know your Rearrangement of soil particles since ancient times when mankind began to build a dam where the old Rearrangement of soil particles is the process of passing the soil of large numbers of workers and the animals soil broken multiple times. And the railway bridges in the beginning to leave the compaction of soil compaction for several years under the influence of the weight before placing the gravel layer above. And the methods used in ancient blood and soil mass approximate to that Proctor made his research in 1933 enter the scientific method in this area.
Definition compaction
Compaction is the rearrangement of soil particles to expel all the air spaces of the soil and is done by using mechanical means and the resulting decrease in the size of air spaces and an increase in the density of the soil. And compaction of different stiffness that the latter is the gradual expulsion of water from saturated soil using the constant stress and a concomitant decrease in size.
The importance of compaction application engineering
Earthen dams in the area of the blood soil reclamation in the dam increase immunity to the penetration of water, which reduces the amount of water leaked from it. The shear strength of the bridge Mdmuk a good help to the stability of the landfill and its resistance to sliding.
And in the field of roads and airports, these engineering capacity exceeding gestational If you created on the basis of Mdmuk well.
And in improving the properties of the soil in the replacement
Compaction of the most important processes required to stabilize the soil, whether an article was added or not added the installation.
Test compaction process
Test compaction process aims to create a situation in the Standard as a basis and guided to make the process of compaction at the site.
And there are many practical experiences that depend on the method and type of compaction, and compaction is divided into the following types:
- Dynamic compaction: where is the compaction by a hammer may fall from a certain height. - Compaction Bajn: where is the penetration and compaction by a multitude of soil and then some kneading occurs in the soil during compaction. - To carry static compaction: the compaction of soil under load in the form of static. - Compaction Shake: where is the blood of making the soil vibration.
Standard Proctor test
Dried soil sample after crushing so that the drying antenna in the range of 5 as the size passing sieve 20 mm, then add the amount of water according to the kind of experience so give the moisture content between 4% to 6% for the sandy soil and Zlatip and value ranging from 8% to 10% of the soil clay and alluvial then placed a sample on the three layers in the template component in a hollow cylinder diameter 10.2 cm and height of the internal 1.6 cm (giving a size of about 944 cm 3) and that this CD has over the top height of 6 cm and compaction of each layer of three layers by tapping 20 the accuracy of a hammer weighing about 2.5 kg and 5.1 cm in diameter and fall height of 30.5 cm and then removed the upper extension of the cylinder and settled the soil inside the cylindrical mold and then weighed to the content of the soil to calculate the density of the wet sample and its water content.
Proctor test average
Last American Federation of Government staff road improvement in the standard Proctor test included placing the sample on the 5 layers and weighing 4.5 kg hammer falling from the height of 45 cm and this shows that the more compaction effort, the largest dry density for the same soil is greater than the maximum and containing less moisture.
Theory of compaction
The results of the tests that compaction dry density increases when the blood with increasing soil moisture content under any effort blood
To inform the sample moisture maximum dry density and then decline after the increase in humidity at the maximum. There are many theories to explain this, including that if the moisture in the soil is low, the particle Tnglv a thin layer of water and air that separates these particles acquire an air pressure where the air is initially offline atmosphere. If Dmokt granules with each other to refrain air connection is located in the spaces, the air pressure of air trapped in the spaces more than the atmospheric pressure by depends on the degree of convergence of the granules from each other, and the volume of air trapped in pockets of the convergence of the resulting particles. And whenever a large volume of air trapped when the pressure was small and vice versa.
The case of extreme humidity resulting in a decrease in the proportion of trapped air and the remainder of the compaction effort until it fails to overcome the frictional resistance between the small particles resulting in an increase in the proportion of pores and thus a decrease in dry density and this process will continue with increasing moisture to the to reach moisture, it is then the proportion of air voids less as possible.
And if the humidity increased this limit, the trapped air is greater than the compaction effort, which fails to compress the air trapped or overcome the friction between the particles. And this result is a decrease in the density of dry soil and an increase in the proportion of pores and air voids.
And the foregoing it can be concluded that the pressure in the spaces Almtwald air during compaction is scientific, which plays a major role in the formation of compaction curve. - Factors affecting the compaction:
1 - water content: dry density than in increasing the water content until it reaches its content of soil water to the maximum value and then decreasing dry density increase of water content.
2 - the amount of compaction: Each soil has a certain type of proper compaction, and increase energy compaction increase the value of the maximum dry density and reduces the optimum water content and the general effort to increase the compaction or compaction energy to make the curve is moving north to the top.
3 - soil type: the maximum dry density depends on the type of soil. And coarse grained soils with a gradient to have a maximum dry density greater than those soils with a filler. And clay, have a less high density.
4 - Method of compaction: impact on the values of compaction and include the method of compaction whether parametric or ring on the weight of hammers and how to compaction (dynamic or static, kneading or mashed) and the time of compaction and exposed area of the blood.
5 - Add-ons: There are some additions that can be used to improve the qualities of compaction.
The impact of compaction on soil properties
- Increases the compaction of the soil shear strength. 2 - more than the carrying capacity of the soil. 3 - reduces the ability of the soil compression and landing. 4 - compaction reduces the permeability of the soil and thus decrease their ability to leak water.
Methods of compaction at the site
Blood performs soil at the site in the following ways: A - compaction Baherasat: There are machines mashing several types: - Mashers soft calf: and are known Behrasat three-wheel and there are different weights. - Mashers with windows blown under pressure: it is composed mashers him several small wheels with tires inflated and heavy weighs about 200 tons of them and stop the passage of this number Herasat and pressure caused by soil compaction on the degree and the required thickness of the soil.
- The Mashers sheep: it is composed of hollow steel cylinders with prismatic feet distributed on the surface of CDs and can be changed by the weight of cylinders filled with water.
B - compaction hammers: The compaction by tapping rods, hammer and weight ranges from 30 to 150 Kg, of which weigh up to one ton.
C - Shake compaction: is your blood soil using updated equipment for vibration. And some of which is a manual for small business and some are huge. And from these so-called float vibration, which contains a cylinder vibrating length 2 m and the external diameter of 43 cm and down the cylinder vibratory meet the soil by pushing water from the bottom and then displays the cylinder vibration Vtadmk soil around it and when it is rolling added soil again on the cylinder then remove the cylinder by 30 cm and then repeat the process again. And uses this type of blood depths of up to nine meters.

Cracks in the concrete Part 4 Calendar cracks

Cracks in the concrete Part 4 Calendar cracks

Include the process of evaluating cracks on the location, extent and causes of occurrence and the extent of the need for restoration may have the engineer, who performs such an operation to re-examine the plans and study note calculations and recalculations, review the specifications and matching it with the whole what has been implemented and identify any conflict or discrepancy, and then give an opinion on the restoration or reform or the appropriate solutions.The process of evaluating cracks according to a systematic and clear by the following steps:1 - visual inspection:Used scheme of status quo of the building contains a network of hubs on the basis of which it was designed to identify the various sites and the patient carefully and take notes and then following it:- Places of cracks and their dimensions.- Sites where the edges of the cracked concrete.- Where the apparent armaments and rust stains, if any.- The erosion of concrete.- No other damage apparent in the surface of the concrete, such as nesting and preferably be attached to these observations with photographs showing the status of origin and the form of cracks and help in the discussion and case study with a number of experts in various disciplines.2 - automated check:Roads can be on the surface with a hammer to detect cracks near the surface in terms of drumming, which indicates the existence of weaknesses or cracks under the surface.You can also use a small microscope equipped with a gradient on the external lens to measure the width of the cracks.You can also use ultrasonic devices, which gives a value written to the time of transit of waves and thus indicate the presence of cracks or cavities.There are X-ray machines and gamma rays to explore the levels of cracking parallel to the direction of the rays.There are devices to locate reinforcing, depth and measuring the penis.3 - Laboratory Testing:- Non-destructive testing of Bethune.- Destructive tests.And is one of the most important work taking carrots (hearts) the concrete is extracted from selected locations in origin, so as to indicate the quality of concrete by pressure testing and testing of chemical reactions or any harmful substances.4 - Review Plans:Should review the structural design and reinforcement of operational plans in order to know the whereabouts of vulnerability or phases that can appear and then cracks can audit to make sure that the reinforcing enough to withstand the ordeal of origin from the overhead.5 - to judge the cracks:Difficult to put a border around the display cracks accepted, so the global codes and put some limits to be taken into account in the design of concrete structures:- Zip British: accept a limit of up to 0.2 mm.- U.S. Code: accepts up to 0.41 mm cracks in the interior, and 0.33 in the outer parts.- Zip Syrian: 0.3 mm.Ways to repair cracks:Is selected on the calendar reform, the exact reasons for and extent of cracks and the appropriate method is chosen depending on what we want to achieve the following goals:1 - to restore or increase the resistance.2 - to restore or increase hardness.3 - Improving the functionality of the building.4 - Providing the concrete property of non-permeability to water.5 - Improve the external appearance of the surface of the concrete.6 - improving the durability of concrete.7 - to prevent the arrival of materials that will help the erosion of concrete or steel rebar.Reform steps and treatment:1 - a proper diagnosis.2 - Determining the feasibility of calendar reform, treatment or not.3 - Draw up action plan and identify priorities for action.4 - select and determine the method of reform.5 - Preparation of structural member of the reform.6 - proper implementation of the method of reform must take into account the following:A - the need to remove the root causes that led to the emergence of defects or deterioration.B - the need to prepare the user to fix it well prepared to receive the fix.C - the need to choose the right way to reform, as well as the materials used in the fix.D - the need for good application accompanied by reform of the way to address the region or Member Almstsaleh long enough

Cracks in the concrete Part 3 Different types of cracks

Different types of cracks1 - cracks active (continuously expanding)A - vertical cracks.B - oblique cracks.An increase in torque.Increase in shear.2 - static cracks.A - vertical or oblique temporary increase in businessB - a separate incisions extended the full length of the structural member of shrinkage is governed by the movement or temperature controlled movementC - when you change to your sector of the local concentration of stressesD - cracking when you change the origin in the form of lack of connections in control (breaks down or stretching)E - cracking moments in a separate area to be moments where a few bars in the area stopped working the beginning of the crackAnd - surface cracks static address weak - loss of surface water - strong winds during the casting.3 - scattering and the fragmentation of concrete strains over-pressure or chemical attack4 - swelling and enlargement of gravel in the concrete interaction of alkali5 - change the color of concrete, chemical attack, the growth of algae, steel rebar.6 - the erosion of concrete abrasion or friction of concrete, chemical attack, and concrete with high permeability.7 - occurrence of stress and submission to the iron overload8 - Iron Inqsaf anatomical occurrence of brittle fracture or stress fatigue of the arrival of Iron9 - plus an elision of the member movements of structural foundations, overloading, wrong to put rebar.10 - steel rebar permeability of concrete cover, connect the stray electric current.

Cracks in the concrete Part 2

Cracks in the concrete Part 2

- cracks as a result of falling soil and differences in the relative decline of the foundation:
1 - because of shrinking and swelling soil due to leakage of water due to rain or a broken water pipe, the soil swell and increase in size and this movement more evident in the cohesive clay soil and then removing the reasons for shrinking soil, leading to cracks in the long low-rise buildings.2 - because of the mistake is a result of investment of the building, the loads lead to a drop in pressure causes the soil is a large and rapid in the case of sandy soil and if the loads decreased as a result of drilling, for example, the process of mistake is reflected, leading to cracks and fissures.3 - If the foundation of individual disparity space as a result of varying loads of the columns vary considerably, the Alhbutat inversely with the area of the base leading to a difference between landing foundations large and small.4 - Landing a result of equilibrium caused by geological agents or artificial or both, for example, in clay soil-leaning expected to move the foundations downward, with a tendency slowly if the increased inclination of 1 / 10 and occurs down the most in the case of snowfall or a shelf nearby.In summary, you must not exceed the maximum values of the total land surface of the foundations of the following values:Type of foundation soil type maximum drop (mm)The foundations of a single cohesive (clay) 70The foundations of a single cohesive (sandy) 50Cohesive mat 150Mat is a coherent 100And have found scientifically that there is a relationship between the value of the total land and the relative decline that may damage the origin and generally do not exceed the values of the total land mentioned in the previous table would aspired to be enough to bear the relative decline of origin without damage.The following table shows the relative values of Alhbutat allowable in terms of angle of rotation, for the various installations (known as the angle of rotation is equal to the relative decline between the two divided by the distance between the two columns).Decline in terms ofThe categorization of the angle of rotation1: 750 reduction is expected when there are problems for the devices are sensitive to the relative decline1: 600 has met the expected occurrence of large cracks in the frames of reinforced concrete non-specific statically significantly1: 500 met the required facilities to be free of any cracks in general.1: 300 reduction is expected to occur when cracks in the walls of buildings structural1: 250 the extent that he has noted a mile high buildings with the naked eye1: 150 reduction is expected to occur when large cracks in the walls of the buildings structural integrity.1: 100 reduction is expected to occur when cracks in the bearing walls of stone (the proportion of high barrier to moisture less than 25%).The minimum at which damage occurs in the structure of origin9-4 - cracks resulting from the increased loads unexpected or due to accidents or natural disasters or as a result use change and what the building: 1 - concrete members subjected to loads during implementation is much larger than those located in the course of the use of the building.2 - Removing the templates after three or four days where the weak resistance of the concrete and then put Alkovraj of the roof which is surmounted and poured directly.3 - Storage of construction materials and heavy equipment over the concrete elements, especially Alborndat (nails).4 - change the location of cargo and placements that are placed on the item Albetoni from those set forth in the drawings, causing excessive loads on the component designer.5 - concrete elements subjected to sudden unexpected shocks of the moving loads.6 - use of origin for purposes other than that allocated to it, was used as residential property Kmhvy or office building or store, which increases to more than three times the pregnancy original design of origin and this leads to the occurrence of cracks in the building elements of various stress of concrete, the values of more than allowed.7 - add the story of origin is calculated, leading to increased loads on the columns and foundations.8 - not to take the unexpected natural disasters such as earthquakes, floods, wind and fire, which lead to generate additional stresses were not taken into account.9-5 - cracks due to lack of maintenance and protection of the facilities:1 - The absence of protection for enterprises and private foundations and other structural elements, consisting of facilities such as isolation and the work of the necessary precautions to prevent cracking and protect the concrete surface to some private entities such as coastal installations, chemical plants, dyeing, cakes, paper, tunnels, roads and so on.2 - The necessity of origin protection against fires resulting from the disadvantages of electrical wiring connections or gas or flammable materials.3 - Failure to provide the necessary maintenance of facilities in the long term to a deterioration of the concrete and thus defects in the structural elements of different addition to the non-safety components and connections, and sewage works and storm water system and water supply and electrical wiring, gas, refrigeration and heating.

Cracks in the concrete Part 1

Cracks in the concrete Part 1

The cracks in the concrete of the most important elements that give a clear indication on the state of origin, they vary according to their seriousness and their impact on facilities and the duration of its appearance and vary in terms of breadth, depth and degree of impact on the origin.Therefore, the scientists divided cracks, according to several criteria, including:- By type of cracks and their impact on the Origin:1 - minor cracks.2 - serious cracks.- Or according to their nature:1) Self-cracks: the result of plastic shrinkage or landing Owaltqls early or drought.2) Foreign cracks: due to increased payloads or misuse of the building or the poor implementation or poor design or non-use of materials in conformity with the specifications.- Or, as the causes of cracks:1 - non-structural cracks.2 - Structural cracks.- Or, as the hardening of concrete:1 - cracks before hardening.2 - cracks after hardening.And other criteria that all agree that the phenomenon of cracking in the concrete is a dangerous phenomenon must be studied to see as soon as possible or prevention of the occurrence and then deal with what appeared, in order to avoid problems before they occur.• the causes of cracks:1 - plastic shrinkage cracking:Produces mainly due to rapid dehydration as a result of exposure surfaces to air currents, leading to severe water evaporates, a much higher degree than the rate of bleeding in the water out of concrete and the resulting strain leads to stress cracks.2 - plastic cracks down:Occurs when there is a high rate of bleeding and landing after the completion of the casting and rolling and finishing where it continues to increase the density of concrete self-as long as it is in the case plastic and when hampered this movement or be constrained by reinforcing or Alkovraj or otherwise lead to cracks adjacent to the elements impeding the movement where cracks appear over the reinforcing rods fixed in the form of reinforcement and curvature appear at the confluence of the column prizes.3 - Early thermal contraction cracks:Generated during the hardening process of early heat resulting from chemical reaction between cement and water are often generated a large amount of heat and temperature of concrete more Its frequency for ambient temperature, especially in the elements of the huge, and after a few days does not exceed / 10 / days down the rate of heat generation to less than the rate of loss (to the low degree of interaction) exerting downward pressure on concrete temperature to ambient temperature, during which changes in the temperature of the concrete hindered the movement of contraction resulting from the low temperature and are generated as a result of that tension stresses cause cracks.And these stresses commensurate with the amount of change in temperature coefficient of thermal expansion and modulus of elasticity and the degree of disability movement.4 - shrinkage cracking resulting from the drought:Show contraction when exposed structural elements of small arms to prevent this shrinkage through some structural installation.5 - web cracks (fissures cancer):Result from the stresses of tensile strength against the surface as a result of obvious differences in the amount of water surface from those available in the class of the lower (internal) and is not linked to time, but circumstances of extreme weather such as low relative humidity, the type of Alkovraj, and the amount of cement in the mixture, the method of shaking for Bethune, which sometimes leads to a surface layer is smooth and rich with water.6 - cracks due to reinforcement corrosion:Which result from oxidation of iron due to ambient moisture or water leakage from water pipes or increase the proportion of chlorides or Mixed Concrete carbon shift of Foreign Affairs or cracks as a result of reasons other than rust, which facilitates access to moisture and begin reinforcing rust.7 - cracks due to interaction of Alkali Aggregate:It is produced from the interaction of alkalis with silica that appear when the cement hydration and source of the alkali metal salts is either in cement or in the addenda or to use ground water or sea water or cladding materials they contain.8 - cracks caused by the interaction of concrete with sulphate:Result from the use of water containing sulfate soluble or soil containing sulfate, and when the leak of these materials to the concrete and reacts with aluminate hydrated calcium interacts with them composed aluminate calcium sulfate is accompanied by a significant increase in size lead to stress strain localized high cause corrosion of concrete and cracking with time.9 - Structural cracks:9-1 - cracks due to design errors:Produce these errors to some or all of the following reasons:A - Failure to follow the requirements of standards and rules applied to the design and implementation of concrete (such as concrete mix design).B - Choose a phrase that is appropriate for construction.C - computational errors.D - The use of arm is not enough.E - neglecting the impact of thermal stresses.And - neglecting the impact of restrictions on the movement of members exposed to the volumetric changes.G - Neglect of rebar details and places of abating and distributed and the differences in diameter and lack of attention to the details of iron and iron link between the elements and iron in the horizontal and the use of different iron in the same item.H - the lack of data or failure to clarify the places expansion joints and contraction and the value of the concrete cover and the lack of places breaks down and you do not specify locations breaks casting.I - errors caused by erroneous movement of loads and weights on the origin or not taking into account some loads such as wind and earthquakes.J - not taking the impact of stress concentration into account, especially at the corners of the Interior.K - poor choice of foundations suitable for soil-borne origin.For - not to account for the overall decline is expected under the foundations and compared to the limits allowed by the quality of the soil.M - Non-Henajat strong attention to the design of the foundations of the Association and especially to the foundations of which are located next to existing installations.N - neglect of the circumstances surrounding the site that may affect the design such as the level and quality of the foundations of nearby buildings and the forthcoming change in the level of groundwater.9-2 - cracks due to errors of implementation:1 - Lack of attention to detail given to the adoption of plans and engineer the port on his own experience and personal.2 - not care to read the notes and warnings on the charts.3 - Do not connect the engineer designed to clarify some technical aspects of others and clear diagrams.4 - Do not follow the amendments and the successive stages of design and its amendments.5 - Not aware of and familiar with the port engineer specifications and technical conditions for implementation of the subject of origin.6 - volume is not suitable for the materials, either concrete or gravel, sand or additions.7 - do not examine the constituent materials for concrete so as to indicate their conformity with standard specifications.8 - the use of rebar or steel it greases and oils or clay or other components that lead to lack of cohesion with the concrete after casting.9 - Aggregate use of non-progressive and non-identical with the percentages of mix design or contain impurities such as salts or organic materials or soft materials are many.10 - Expired term use of cement or cement does not suit the nature of the weather conditions surrounding the origin or does not fit and the quality of salt in the soil, directly adjacent to the foundations.11 - the use of water is not suitable for mixing, such as sea water or ground water containing salts or acids or harmful use of water more than the allowable limit.12 - the presence of defects in the concrete cover in terms of strength and poise and dimensions and non-Nvaveth and is falling, leading to a decline during and after the pouring of concrete.13 - lack of proper calibration of the materials used.14 - defects in the casting method of hand mixing, transport or shaking, or treatment or the use of excessive amounts of water or too much in the work of shaking and not to take the necessary protection for concrete in conditions of heat drought and strong winds or freezing or under water or jaw early Couvraj before the arrival of concrete resistance appropriate to the load and so on.15 - neglecting to do the implementation of the necessary laboratory tests to make sure the quality of the concrete, such as compression set resistance and the degree of absorption or rate of compaction or interoperability.16 - Errors modified iron in terms of types or diameters of iron and not to put in its places and spaces correct the specific schemes and composition and lengths and the appropriate extension with the installation of a good iron supply and Almaxh and Atari.17 - shook the iron after doubt concrete primary and shook the bars especially the columns leading to the fall of Atari and accumulation in the bottom of the column spacing, or for the prescribed limits, which affects the efficiency of the column.18 - do not leave enough distance between the iron and wooden Alkovraj to get the proper coverage according to the type of item and its own specifications.19 - not to put chairs under the rebar Alborndat (nails), leading to the fall of the iron during casting top to bottom and the lack of iron in the areas of tension.20 - not to put links of iron in the right place and the specific lengths and a sufficient number of iron and with the same diameter.21 - lack of attention to the implementation of the casting breaks in places not subjected to high forces and stresses and not afraid to surface cohesion at the follow-up casting.22 - lack of attention to the implementation of the expansion joints and landing at the facility or the structural elements are good and not care for cleanliness and dealt with according to assets, which means it will become a weak area for moisture and groundwater, affecting the long-term occurs in the reinforcing steel and cracking concrete.23 - lack of integrity of the columns, especially the necks of the columns.24 - Non-drainage water from the areas adjacent to the foundations.25 - casting on the soil are not valid contain organic material or clay.26 - lack of attention to filling material between the foundation and the use of soil containing sulfur or organic working on rebar corrosion.27 - Non-isolated foundations in the case of high water levels groundwater level foundations.28 - error in the application of the methods of delivery and mixing them, such as the implementation of the central nucleus and great heights using a sliding template example and create the building in the traditional manner (templates Basic), which leads to a relative decline is calculated.29 - error in the implementation of fit-outs that lead to the occurrence of cracks and flaws in construction, such as lack of attention to extensions of health leading to the infiltration of muddy water to the walls and foundations and their interaction with iron.30 - or break open big holes to pass the plumbing ground in dangerous places.31 - Non-implementation of the layers of insulation to moisture or water, especially the last Bishop of origin or Baloaqbip or the implementation of that is poorly matched to the technical specifications or the use of insulating material is intact.32 - lack of interest in the basements of leprosy soil well before tiling, leading to cracking of these floors and the leakage of water into the soil foundation which leads to a decline in those foundations are clustered for cracks lead to a serious origin.33 - done by pouring concrete from high altitudes, leading to the separation of its components, and thus get gaps in it (Altashecat).34 - Althver others sound by construction workers, electrical, health, and especially in columns.

Treatment of cracks in buildings under windows

Treatment of cracks in buildings under windows

- We are the lengths of filler layer ((cement, sand)) from around the cracks

Shi less 5 cm from both sides

2 - We refactor the cracks of 2 to 3 cm

3 - We Bhaci fiber, metal, cracks from the inside

4 - we cover the cracks and surface cracking, which we

Network of thin metal ((window starling eye 1 mm))

5 - we do Allisa on the entire surface cracked

Note: cracks at an angle of 45 degrees is considered one of the most dangerous types of cracks

 

Two Wrong Things during the architecture of the stairs

Two Wrong Things during the architecture of the stairs

Kthirma engineers amid about the apple Bouktoin Vadhin during the architecture of stairs or ladders, two mistakes are abbreviated as follows:

First: accept the administration of absurdity up the stairs: -

Must be an architect to accept the administration of the acceleration of the stairs so that it is in the adverse administration of movement of the alarm and the acumen is to allay the activity of circuit during the boarding ... faculty of circuit during ascendance alarming than it is to get off area accompanied with the concrete accomplishment Almtkkrp in attempts to affected the armament gravity, arch to a crisis in claret burden and this is money able-bodied accepted by abounding engineers about the world.

The acumen for that activity of circuit in the case of the about-face in the adverse administration to the administration of the alarm abundant beneath than it is with a alarm is the calm shipments of the heart's electrical abrogating and absolute to the admeasurement not Baltam, but he is abutting to full, which reduces decidedly the abnormality of a faculty of spinning, nausea, and this estimation able medical and you can analysis Web sites on this and begin abundant better

From actuality Nsttie to explain why Muslims circling about the Kaaba in the adverse administration to the administration of circling of the clock. Underscored the acumen of God the Almighty.

Second: The absurdity in the akin of the aboriginal breach in the tray if the access access to the architecture anon in advanced of: -

Where a lot of bodies accuse afterwards the about-face of homes of low acceleration Breach the stairs to the aboriginal amount it is about to hit the bend of the active of passers-by Abermdechl construction. To abstain these mistakes carefully admit Haaht drawer afterwards access to the architecture to acceleration breach the aboriginal $ 250 and up to 330 centimeters on the beginning of the access to the architecture Ooachtiar position complete of the abode of the stairs and the appearance of the leg the dog or the French arrangement and Achtiaroavad chic and Ahaaht in accordance with engineering standards and by cipher arrangement adopted in the country.