Evaluation the effect of Conmix (SP1B) Superplasticizer on Physical Properties performance of Cement Paste  and Mortar

	Evaluation the effect of Conmix (SP1B) Superplasticizer on Physical Properties performance of Cement Paste and Mortar
journal of kerbala university
Article 1, Volume 9, Issue 4, 2013, Pages 92-103 PDF (0 K)
Abstract
The research aim is to study effect of Conmix (SP1B) SuperPlasticizer at its addition to cement mortar with ratios of 1%, 1.5%, 2%, 2.5%, 3% and 3.5% of cement weight on its properties like compressive and tensile strength, workability and study the ability of cement decreasing in mortar. There are (202) samples have been tested, (16) samples for reference cement paste standard consistency and reference mortar compressive and tensile strength. (6) Samples for the mixed cement paste setting time, (72) samples for the mixed mortar compressive & tensile strengths as per the above addition ratios. The rest are (108) mixed mortar samples for the above compressive and tensile samples as per the above addition ratios but with reducing cement by ratios of 5%, 15%, 20%, 25%, 30%, 35%, 40%, 10% of its weight in mortar. Results showed that the best SuperPlasticizer addition ratio in mortar is(2.5%) of cement weight for the compressive strength increasing by (45.51%) and tensile by (15.71%) more than their reference mortar strength, decreasing water weight of reference mortar by(0.5%) for each (1%) addition and the setting time is not affected. The best decreasing cement ratio in cement mortar is(35%)of its weight in reference mortar with addition ratio (2.5%) and gave acceptable compressive& tensile strength by the specifications with good workability and less total cost by (11.29%) of reference mortar according to economic feasibility study for it.

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