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NON DESTRUCTIVE TESTING FOR CONCRETE

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Non-destructive tests of concrete is a method to obtain the compressive strength and other properties of concrete from the existing structures. This test provides immediate results and actual strength and properties of concrete structure.The standard method of evaluating the quality of concrete in buildings or structures is to test specimens cast simultaneously for compressive, flexural and tensile strengths. The main disadvantages are that results are not obtained immediately; that concrete in specimens may differ from that in the actual structure as a result of different curing and compaction conditions; and that strength properties of a concrete specimen depend on its size and shape. Although there can be no direct measurement of the strength properties of structural concrete for the simple reason that strength determination involves destructive stresses, several non- destructive methods of assessment have been developed. These depend on the fact that certain physical proper...
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Calculating bricks and blocks bricks  -  blocks One aspect of brickwork which often causes confusion is estimating how many bricks or blocks will be required for a planned wall - you don't want to run out before you finish but you also don't want a pallet load of material left unused when you have finished. Making these estimates is fairly straight forward using just a few figures. First the number of bricks/blocks for the total wall is calculated, then the additional number of bricks for any piers. These are added together and then a 10% allowance should be added for wastage and breakages - the figures below do not include this allowance. Calculating the number of bricks Standard, UK, metric bricks are roughly 215 x 102.5 x 65mm, the mortar joints used are normally about 10mm both horizontally and vertically. Half brick wall A half brick wide wall requires  60 bricks per square metre . So the first stage is just to measure the height and length (includi...
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My project : Gss Jain college Nallur,ECR
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Bamboo

Why Bamboo is more Stronger than Steel Reinforcement? Hello Friends, In this article today I will discuss about Bamboo which we can use in construction works, and why bamboo is more stronger than steel reinforcement so, Let’s get start. Bamboo has quite high tensile strength. It is comparable with steel. Apart from this, bamboo has an impermeable protective layer on the outer side which protects it from rotting due to water, which is a major problem for almost all organic material. strength  Now in civil engineering many people are using bamboo  in place of steel for reinforcement, but bamboo is an excellent choice for reinforcement in concrete because of its higher strength as compared to steel by weight, the tensile strength  Bamboo’s tensile strength is roughly 28,000 per square inch versus steel’s 23,000. Bamboo is stronger more than 6 times of steel reinforcement, On comparison, the energy needed to produce steel is almost 50 times that of this na...
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Bar Bending Schedule [BBS] Estimate of Steel in Building Construction Table of Contents  [ show ] Introduction to Bar Bending Schedule [BBS]:- “BBS” The word BBS Plays a significant role in any construction of High rise buildings. BBS refers to Bar Bending Schedule. Well, Whats the use of BBS? Why we use BBS? BBS is termed as Calculation of Steel required for the construction of a building. We use steel to make concrete to be reinforced and for tension requirements. But how much steel required for constructing 15 floors building?? How much Steel I have to order? All these questions are answered in BBS. Well, from 1950 to 2017 lots of modifications and enhancements happening in our world. At that time three storeyed buildings are high rise buildings now we are constructing a building with 200 floors+. There is a massive growth in construction. More population, more need of facilities, more need of space, more construction. How BBS Changed from 1950-2000:- Fat...
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