Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / manoj p. v
when Portland cement is mixed with water a chemical reaction called hydration takes place. The extent to which this reaction is completed influences the strength and durability of the concrete. Freshly mixed concrete normally contains more water than is required for hydration of the cement; however, excessive loss of water by evaporation can delay or prevent adequate hydration. The surface is particularly susceptible to insufficient hydration because it dries first. If temperatures are favourable, hydration is relatively rapid the first few days after concrete is placed; however, it is important for water to be retained in the concrete during this period, that is, for evaporation to be prevented or substantially reduced.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
How do you maintain water pressure?
Can rice husk ash be used instead of coal fly ash for manufacture of clc/ foam concrete
Why is the use of granular sub-base in concrete carriageways not preferred, explain?
How to Rectify deep crack formed on Brick Wall? Explain the method of rectify the defect?
How to design staircase.plz tell me formula for the design the staircase.
How to arrive the co- efficient of all civil activities? For ex:- painting-enamel in wooden doors. co efficient is 1.8. How this is calculated
Calculate the maximum allowable speed on a horizontal curve of radius 350m if the maximum allowable values of the lateral coefficient of friction are 0.14 and the rate of superelevation is 0.08.
in a corner footing of a building, column lies in one corner. in this condition i want to know if the reactive pressure of soil will be uniformly distributed throughout the footing or will be uniformly varying as in the case of eccentrical loading.
what is the exact dia of 8swg and 10swg gabion wire
Why you are leaving present job?
if we know load bearing capacity of the soil and building load falling in each footing, then how to choose the type of foundation??? and if it is shallow foundation then which type of shallow foundation should be choosen i.e either strip or isolated or raft or combined or cantilever footing???????
how do you stabilize a waterlogged area in road construction
How much material is required for constructing a 2 Lane 2Km rigid pavement road
Can compresive strength test for concrete at 1 day age possible to carry out? If yes, which IS code describes the procedure for such testing?
What is the l/d ratio of cantilever beam?
