Calculate the temperature of the fresh concrete

Reference no: EM13535632

A 1: 1½ : 3 mix (by mass) has a water/cement ratio of 0.4 and a cement content of (400) kg/m3. The temperatures of the ingredients are as follows: cement 64 ºF, aggregate 86 ºF, and water 68 ºF. Assuming that the aggregate has negligible absorption, calculate the temperature of the fresh concrete. Also calculate how much ice is required to reduce the temperature of the fresh concrete to 61 ºF. Briefly explain why the compressive strength of concrete is its most important property?

Reference no: EM13535632

Questions Cloud

Solve the linear inequality graphically : First rewrite the equation as f(x) = g(x) where

Write the equation of the line with slope : Write the equation of the line with slope 4 and y-intercept (0, –5). Then graph the line.

What was the hourly rate of temperature change : If the graphs of the functions f(x) and g(x) intersect at the point (–5, –6), then {–5} is the solution to the equation f(x) = g(x).

How long would it take both of them working together : Working by herself, Penny can paint a billboard in 6 hours. Her new apprentice, Brian, requires 12 h to do the same job. How long would it take both of them working together to paint a billboard?

Calculate the temperature of the fresh concrete : A 1: 1½ : 3 mix (by mass) has a water/cement ratio of 0.4 and a cement content of (400) kg/m3. The temperatures of the ingredients are as follows

Calculate the minimum set-back distance required : Calculate the minimum set-back distance required for a national highway of 4 lane divided carriageway having circular curve of radius of 350 m & design speed 100 km/hr.

List the advantages of compressed natural gas : List the advantages and disadvantages of the following alternative fuels: ethanol, methanol, biodiesel, compressed natural gas, and liquid petroleum gas.

Find the settling velocity of a 20 µm diameter particle with : Find the settling velocity of a 20 µm diameter particle with density 1500 kg/m3. If this particle had been hurled to a height of 8,000 m during a volcanic eruption, estimate the time required to reach the ground

What is the step method for drawing raft foundation : A long line of burning agricultural waste emits 0.3 g/m/s of particulate matter on a clear fall afternoon with winds blowing 3 m/s perpendicular to the line. Estimate the ground-level particulate concentration 400 m downwind from the line.

User Account

All Pages