Objective: To assert consistency of bituminous material To evaluate aptness of bitumen for its usage under varying climatic conditions and construction types Apparatus: Container: A metallic dish of cylindrical shape with a flat base and diameter of 55m and depth of 35mm. In case the penetration is of order 225 or more, dish of 70mm […]
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Reactive power concrete (RPC) is: A composite material of ultra high quality with mechanical properties. Mixture of fiber strengthened, super plasticized, silica rage, bond and quartz sand with low water concrete proportion. Quartz sand utilized rather than normal total. Thus, these lines increments compressive quality. Composition It is made out of comparative modulus of flexibility […]
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The fundamental driving force for advancement and improvement of carbon fibers has originated from the airplane business with its requirement for a material with mix of high quality, high rigidity and low weight. As of late, construction industry and civil engineers have started to understand that this material (CFRP) can possibly give solutions for some […]
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Objective: (i) To assess the impact value of the road aggregates; (ii) To evaluate their appropriateness in road construction on the foundation of impact value. Apparatus: The apparatus as per IS: 2386 (Part IV) – 1963 includes the following: (i) A testing machine with the weight range of 45 to 60 kg and consisting of […]
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The concrete durability has been defined by American Concrete Institute (ACI) as its resistance to the weathering activities, different chemical attack, scratch and other dilapidation processes and activities. Durability is the capacity to keep going quite a while without huge disintegration. A solid material helps the earth by saving assets and decreasing squanders and the […]
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Physical and Chemical Properties of Ordinary Portland Cement (OPC) of different grades: Type of Cement 33 Grade (IS: 269-1989) 43 Grade (IS:8112-1989) 53 Grade (IS: 12269-1987) Physical Properties Minimum Compressive Strength, N/mm2 3 day 16 23 27 7 day 22 33 37 28 day 33 43 53 Fineness Minimum specific surface (Blaine’s air permeability) m2/kg […]
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Many countries today are facing the problems brought by rotting reinforced concrete infrastructures. This often calls for expensive repairs and replacement of these structures – in some cases, after a very short period of installment. Due to these problems, government bodies are not demanding a greater attention and emphasis on life cycle costs for new […]
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The breakdown regularly appears as a dynamic de-holding of the plaster of mortar/cement from the surface of the solid and for the most part begins with the development of little hollow zones. This condition for the most part weakens until the plaster on an entire divider gets to be unbonded and lumps exteriorly. On soffits, […]
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