Construction Technology

In this article,I am presenting few important most important questions with their answers, taken from various IS codes.These questions could be of your great help for your interview and general awareness about civil engineering. Please go through it.I hope it will expand your knowledge. (1.) For most work, 20 mm aggregate is suitable. (2.) The plumb shall be distributed evenly and shall be not closer than 150 mm from the surface. (3.) In concreting, the PH value of water shall be not less than 6. Image Source:Pexels.com (4.) The modulus of elasticity of steel shall be taken as 200 KN/mm 2 (5.) The characteristic strength is defined as the strength of material below which not more than 5% of the test results are expected to fail. Image Source:Pexels.com Recent Post: Determination of dry density of soil in place by the core cutter method (6.)  Sl. No. Age of Loading Creep Coefficient 1 7 Days 2.2 2 28 Days...

  Determination of Dry density of soils in place by the core-cutter method Image Source:Cementconcrete.org IS code for this test-2720 (Part-29) Note:- Sl. No. IS Code Part No. Description 1 2720 28 Determination of dry density of soils in place by the sand replacement method 2 2720 33 Determination of the density in place by the ring and water replacement method 3 2720 34 Determination of density of soil in place by the rubber-ballon method Recent Post:- Important terms/points of civil engineering Image Source:dirindiamart.com Apparatus required for this test:-       (1.)   Cylindrical Core-Cutter :- Height=130 mm Internal Diameter=100 mm External Diameter=103 mm Wall Thickness=3 mm The cutter shall be kept properly greased or oiled. Image Source:Indiamart.com Also Read:Important o...

In this article,I am presenting few important most important questions with their answers.These questions could be of your great help for your interview and general awareness about civil engineering. Please go through it.I hope it will expand your knowledge. Image Source:happho.com (1.) Bleeding :- Diffusion or running of concrete through form work. It indicates the more water cement ratio and fine particles. (2.) Curing :- Curing is done to supply of necessary water required for hydration and stop or prevent the loss of moisture from the surface of the concrete. Image Source:Gharpedia.com Steam under pressure curing helps to gain the early strength of the concrete but does not provide the increase in compressive strength neither reduces the shear strength of the concrete. (3.) Rebound hammer(Schmidt hammer) test gives only approximate estimation of strength of the concrete specimen. Image Source:Concretecivil.com Recent Post: Important one liner questions with their answers, Part-1...