SITUATION. A steel plate ABCD of thickness t Smm is subjected to uniform stresses E2000Pa, y 13 160mm and b 200 mm Calculate the change in the length (mm) of AB -0.0130 O 00130 0.0175 00175 Calculate the change in the length (mm) of AD. -0.096 0.096 -0.050 0.05 Calculate the change in the diagonal (m BD -0.09613 0.096 O. 005000 0.0500 Calculate the change in thickness (mm) O -0.0023 mm 0.0023 mm -0.0045 mm 0.0045 mm

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Types of Cement

Cement is a fine mixture of limestone, chalk, or marl and clay which when mixed with water, becomes compacted due to the formation of strong molecular bonds. Due to hydration, cement turns into a hard mass when left for a sufficient amount of time upon mixing with water. The water turns the cement compounds into gel-like submicroscopic particles having higher surface areas. It is due to the hydration properties of cement, they are often known as hydraulic cement. For instance, Portland cement is a popular example in this category.