Concrete Workability Concrete Workability is a property of concrete in its fresh state during mixing. It determines the ease with with casting activities are done including mixing, placing, compacting and finishing. Concrete workability is usually
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Flexural Strength Flexural strength is an indirect measure of the tensile strength of concrete. It is a measure of the maximum stress on the tension face of an unreinforced concrete beam or slab at the point
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Concrete in Compression It is generally accepted that the behavior of a reinforced concrete member under load depends on the stress–strain relationship of the materials, as well as the type of stress to which it is
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Concrete in Tension: Tensile Strength of Concrete The tensile and compressive strengths of concrete are not proportional, and an increase in compressive strength is accompanied by an appreciably smaller percentage increase in tensile strength. According
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Effect of Age on Concrete Strength The strength versus gel/space ratio relationship has a general application because the amount of gel present in the cement paste at any time is itself a function of age
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Cement Setting Setting of Cement, or cement setting, is a term used to describe the stiffening of the cement paste. Setting refers to a change from a fluid to a rigid stage. Although, during setting, the
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Concrete structures are designed to achieve a certain service life. For instance, bridges are designed to achieve a 100 – 120 years of service. However, concrete life can be compromised or ended before the specified life.
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Before stating the types of concrete admixtures, let us start first by the definition of “Admixtures”. According to ACI Committee 116, an admixture is ‘a material other than water, aggregates, hydraulic cement, and fiber reinforcement, used
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