Effects of Using “NICOFLOK” polymer on the strength of construction and demolition wastes

Document Type : Research Article


1 Deprt of Civil Engineering Professor, Iran Science and Technology university, Tehran, Iran

2 Department of Civil Engineering, iran university of science & technology, tehran, iran

3 Department of Civil Engineering, University of Mohagheghe Ardebili, Ardebil, Iran,


Construction and demolition wastes is always a trouble for construction and agriculture activities. In this study samples from bricks, cement mortar and gypsum and their composition which comes from building construction and demolition were collected. The effect of adding Nicoflok Mineral polymer (NMP) with cement cement was investigated on samples in the stabilized form. Thus the feasibility of increasing compressive and tensile strength and durability by stabilizing with 3, 6 and 12 percent cement and adding a mineral polymer which is known as Nicoflok with the amount of 10% of cement’s weight for 7 and 28 days was investigated by collecting brick (burned clay), cement contained waste (waste of cement block workshop) and gypsum waste (passing from the sieve #40). The results showed that NMP generally increases compressive and tensile strength but the amount of increase depends on the material and the used mixture; samples with cement waste had more compressive strength in comparison with other samples, and samples with brick waste had the lowest strength. Adding 10% crushed gypsum to the mixture of brick and cement waste, improved the tensile strength in some cases. The results obtained from the compaction curve also showed that the materials including cement and block pieces have the highest compaction potential, while the materials including bricks have the lowest dry density.


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