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How to calculate the quantity of water for a given mix concrete. As it would be required to calculate for mix 1:2:4.
What are the difference between Tender and Contract Documents? Can we mention tender documents as contract document while issuing LOA to the Contractor. if no then what is the difference?
To understand the difference between tender documents and contract documents, first we have to understand what these documents contain. Tender Documents: A tender is an offer in writing to contractors to execute the some specified works or to supply specified materials within a fixed time frame andRead more
What are the bearing capacity values of different types of soils such as clay, sand, gravel, rocks etc.?
Soft clay                                                            2-3.75 tonnes/m2 Black cotton soil                                                5-7.5 tonnes/m2 Alluvial learn                                                      7-5.16 tonnes/m2 Alluvial soil                                Read more
Different Cement companies have maintain different % of Flyash in cement. what are the advantage and disadvantage of Higher / Lower % of flyash in cement.
Fly ash adding following advantages Protect against sulphur attack. Increase concrete life. Reduction in cost. Reduce CO2 emission. Good work as a DPC. Reduction in shrinkage & plastic cracks. Disadvantages Lower earlier strength. Less bonding compare to cement. Fly ash is not a cemetesius materRead more
Which softwares can be used for estimation of construction project time and quantity?
Explain the effect of the construction of Weir or Barrage on the regime of the river?
Effects of weirs A quick change in water level upstream. The change is not continuous rather depends place to place. As an outcome, flow velocities change from place to place. The change in flow velocity and hence the change in the transportation of sediments rise to erosion and sedimentation on rivRead more
I want to what is height of instrument and Rise & fall method of levelling? What is the method to calculate reduced level.
In simple English, The height of instrument always measures form benchmark. The benchmark is a Point on the sea derived from mean sea level. Rise and Fall method: The rise and fall of ground between two adjacent ranging rod are measures with levelling staff. High reading= fall of ground level. Low rRead more
How to repair the damaged beams and walls in load-bearing construction as shown in the images below. As seen in the picture, the structure has been broken to make way for drain pipes.
There are certain methods to remove the delaminated concrete, and then formwork is to be fixe. After that, the application of repair material like a dry pack, and wet pack, shotcrete, is carried out if reinforcement is not removed while fixing the pipe. You can try one other method also, by fixing pRead more
aviratdhodare
r = wh20 / wc   = 8.33 qH20 / wc               (1) where r = water to cement ratio wh20 = weight of water (lbs) wc = weight of cement (lbs) qH20 = volume of water (US gallon) Example - Water to Cement Ratio A batch of concrete has 45 gallons of water and 900 lbs of cement. The water tRead more