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1. Describe the pozzolonic reaction in concrete.
2. What makes a material behave more pozzolonically than hydraulically.
3. Describe how a material's pozzolonicity is defined.
4. Describe why pozzolonic reaction improves properties of concrete.
5. Explain what problems or negative consequences the pozzolonic reaction may cause on concrete construction.
The absolute flow enters at 30° and leaves radially inward. The flow rate is 3.5 m3 /s of water at 20°C. The blade thickness is constant at 10 cm. Compute the theoretical power developed.
The truss is to be constructed of members with equal cross-sectional areas and using a material with yield stress 700 MPa. The structure must be designed to support a mass (m) of 3400 kg with a factor of safety of 3.
You are designing a new thermometer using Galinstan, an alloy of gallium, indium, and tin that is a liquid at normal living temperatures. The coefficcient of thermal expansion is 190*10^-6 (1/kelvin).
The maximum and minimum dry densities, determined by standard laboratory tests, are 1.81 and 1.54 Mg/m^3, respectively. Determine the density index of the sand.
When water at 70C flows through a convergingsection of pipe, the pipe pressure decreases in the direction of flow. Estimate the minimum absolute pressure that can develop without causing cavitation.
An irregular piece of unknown ore weighs 7 lb in air and was found to weigh 5.6 lb in water when submerged.
Prepare a value proposition and commercialisation project brief on the "RAPID MANUFACTURING 3-D PRINTING" with the following key information
A couple acting on the winch at G slowly raises the load W by means of a rope that runs around the pulleys attached to the derrick at A and B. Determine the forces in members EF and KL of the derrick, assuming the diameters of the pulleys and the ..
What is total energy?Identify the different forms of energy that constitute total energy.What is total energy?Identify the different forms of energy that constitute total energy.
An earthen channel will be excavated into sandy soil for which Vmax = 4.0 ft/sec, n = 0.022, and the recommended m = 3. The channel will have a bottom slope of 0.0011 and accommodate a design flow of 303 cfs. Design (size) the channel section.
A constant pressure container is filled with 1 kg of stainless steel and 0.5 kg of PVC (polyvinyl chlo- ride) both at 20C and 0.25 kg of hot air at 500 K, 100 kPa. The container is now left alone with no external heat transfer.
A left-turn movement has a maximum arrival rate of 200 veh/h. The saturation flow of this movement is 1400 veh/h. For this approach, the yellow time is 4 seconds, all red time is 2 seconds and total lost time is 3 seconds.
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