Answer / khans

by curing

Answer / xevier

Since hydration of cement is exothermic, evolved heat is harmful to mass concrete and may cause thermal-shrinkage-induced cracking due to heat build-up in the concrete, frequently occurred in hot climate country. Heat generation can be reduced by replacing cement portion with pulverized-fuel ash, like PFAC, modification of clinker constituents, and fineness of cement. A reduction in temperature will retard the rate of hydration and so further restrict the rate of heat generation and reduce thermal shrinkage.

what is the unit of heat of hydration?

6 Answers   ACC, L&T,

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Civil engineering material testing Standard results

0 Answers   SUCG Infrastructure,

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Define slump in terms of slump test

6 Answers  

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calculation of cement bags in 1:2:4 concrete mix

26 Answers  

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which is higher specific gravity or bulkdensity

2 Answers   ICGAR, IGCAR,

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Q1) I am having an interview in a construction company for a large sewage project . Since I have not done any such project , there are some queries from my end. Pls. help me to solve them. I will be thankful to you :- a) Normally for large project 400-600 houses & around 1600 peoples , how much dia pipe is used and which type of pipe is used? b) For trenching , I have heard that IS 1200 implies, what are the rules of calculating earthwork in case of depth of 2m or above ? c) To prevent soil to fall when depth of trench is more , what steps are taken and how there qty. is calculated . Like I have heard about timbering . what is this ? d) What are the rules for disposing off the excavated soil ? e) How the pipes that are used are being jointed? f) In case of cleaning on choks , is there any intermediate things provided? g) For foul gases any outlets are provided thru out length of pipeline? h) What is the flow digram like from houses thru small pipe to main pipeline than where main pipeline disposes wastage ? i) Any other thing that has to be kept in mind while calculating earth work for excavation like steps are made and other things? How earthwork is calculated in case of steps ? Pls. explain with a sketch. Regards,

1 Answers  

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WHAT YOU MEAN BY PROOF STRESS?

3 Answers  

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HOW TO CLACULATE CEMENT AND SAND CONSUMPTION FOR THE STAIRCASE KOTA FLOORING IN THE RATIO OF 1:4 50 MM THICKNESS

0 Answers   ACC, DLF, L&T,

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Why beam breadth smaller than depth

4 Answers   Shanthi Builders,

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how to read the drawings to find the quantity of steel in a storm water manhole or any other structure?

0 Answers  

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TWO EXAMPLES OF NET WORT REVENUES FROM BUILDING CONSTRUCTION

1 Answers  

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All aptitude question of Bechtel

0 Answers   Bechtel,

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