1.What are the effects of reducing w/c on porosity, permeability, and compressive strength of hydrated cement? (Porosity: capillary pore volume/total volume of hydrated cement specimen; Permeability: a measurement of rate of flow of water through specimen)
2.A 5000 lb truck is being used to lift a 1000 lb boulder B that is on a 200lb pallet A. Knowing the acceleration of the truck is 1ft/s^2, determine
a) the horizontal force between the tires and the ground,
b) the force between the boulder and the pallet
3.Water at 20 °C is transported through a 200 m long wrought iron pipe with a head loss of 9.8 m. Determine the diameter of the pipe required to convey 10L/sec.