Open Access

Demolition Waste as Cement Replacement in Concrete

Vikas Srivastava, vikas_mes@rediffmail.com
Civil Engg Department SHIATS (formerly AAI-DU), Allahabad, UP, India.,,, Mohd Monish, Civil Engg Department SHIATS (formerly AAI-DU), Allahabad, UP, India.,,, V.C. Agarwal, Civil Engg Department SHIATS (formerly AAI-DU), Allahabad, UP, India.,,, P.K. Mehta Civil Engg Department SHIATS (formerly AAI-DU), Allahabad, UP, India.,,,

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Abstract

Demolition of old structures to make way for new and modern ones is common features in metropolitan areas due to rapid urbanization. Very little demolished concrete is recycled or reused. Due to strict environmental laws and lack of dumping sites in urban areas, demolished waste disposal poses problems. In the present work, experimental investigations were carried out to evaluate the effect of partial replacement of regular cement in concrete by different parts of demolished wastes. For the study, concrete cubes were cast by replacing part of cement with recycled powder. The cubes were tested at 7 and 28 days. The compressive strength of these cubes is compared with the strength of referral concrete (Design mix concrete, M25). Test results show that behavior of recycled waste concrete with partial replacement of cement (20%) by recycled waste powder is almost similar to that of referral concrete.

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Reference

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Corinaldesi, V. and Moriconi, G., Behavior of beamcolumn joints made of sustainable  concrete under cyclic loading, J. Mater. Civ. Eng., 18(5), 650-658 (2006).

http://dx.doi.org/10.1061/(ASCE)0899-1561(2006)18:5(650)

Mehta, P.K., Greening of the concrete industry for sustainable development, Concr. Int., 24(7), 23-28(2002).

Mehta, P.K., Reducing the environmental impact of concrete, Concr. Int., 23(10), 61-66(2001).

Moriconi, G., Corinaldesi, V., and Antonucci, R., Environmental-friendly mortars: a way to improve bond between mortar and brick, Mater. Struct., 36(264), 702-708(2003).

http://dx.doi.org/10.1617/13872

IS: 456-1978., Code of practice for plain reinforced concrete. Indian Standard Institute, New Delhi.

IS: 6461-1973., Properties of concrete, (Part VIII). Indian Standard Institute, New Delhi.

IS: 8112-1989., 43 Grade ordinary Portland cement. Indian Standard Institute, New Delhi.

Masood, A., Ahamed, T., Arif, M and Mahdi, F., Waste management strategies for concrete. Environ. Eng. Policy., 3, 15-18 (2001).