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Cement is the most important component of concrete. 1_______. Concrete may be considered an artificial conglomerate of “crushed stone, gravel or similar inert material with a mortar”. A mortar is a mixture of sand, screenings or similar inert particles with cement and water. 2_______. The most accurate method of measuring proportions is to weigh the required quantities of each material. This may be done whether the proportions are based upon volumes or weights. 3_______. It is also widely used in large building constructions. 4_______.
Cement is the most important component of concrete. 1_______. Concrete may be considered an artificial conglomerate of “crushed stone, gravel or similar inert material with a mortar”. A mortar is a mixture of sand, screenings or similar inert particles with cement and water. 2_______. The most accurate method of measuring proportions is to weigh the required quantities of each material. This may be done whether the proportions are based upon volumes or weights. 3_______. It is also widely used in large building constructions. 4_______.
• This method is being extensively used in road constriction
• It is very important to know everything about proportions
• Concrete is even less uniform than many other materials
• Sometimes timber, steel and concrete are all vary over considerable ranges in the properties desired by the engineer