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
what is meant by residual strain?
What is the coeffiencent Friction Angle between Steel and Ashphalt?
why is M25 and Fe 500 assumed to be most economical? i feel it is not.This is because higher grade of concrete and steel has higher lapping length and anchorage length compared to lower grades..
During reclamation how can the occurrence of mud waves can be rectified?
natucher of concrete &type of concrete?
how to clculate the %of concrete strenght achive after curing?load
How do you compute moisture correction using the parameters gathered from Nuclear Density Gauge Apparatus and the moisture contents results from the lab.?
why is M30 grade Concrete use for Foothing & Column M50
What is the difference in painting using Roller and Brush? What is the paint consumption difference? As per IS one coat of painting is painting from left to right and top to bottom whether this can be done using roller ( Roller Stick height and feasibility) ?
How many hours should traffic be not allowed after completing wbm road or bst.and min how many hours should road rollers be used.
Dear Engineers, Can you please advise me the material requirement to construct a room 4 M x 4 M 1. No. of Standard Brick 2. Requirement of Cement Bags 3. And Concrete for Steel, Cement, sand, etc Thanks
What is rate for brick masonry work of 1.0 m3 in cm 1:6?
what course did you consider thinking before you enrolled in college?
Define Workability ?
how to take the quantity of block work and plastering 1block price:3saudi riyal cement:1bag:15 saudi riyal sand:3bag:20 saudi riyal 1mason:9hour per hour 40 saudi riyal 1labour:9hour per hour 40 saudi riyal can anybdy calculate
