Effects of Para Rubber Latex on Workability, Compressive Strength and Water Permeability of Normal Strength Concrete
doi: 10.14456/mijet.2021.9
Keywords:
Para rubber latex, compressive strength, water permeability, concreteAbstract
The objective of this research was to study the effects of para rubber latex on concrete properties even for fresh and hardened concrete namely; workability, compressive strength, and water permeability. LA-TZ, para rubber latex, was used as a partial water replacement at the rates of 0.5, 1.0, 1.5, and 2.0 percent by weight of water. The compressive strength of normal concrete was 24 MPa. The compressive strength of concrete samples was investigated at the ages of 3, 7, 14, and 28 days whereas only at the age of 28 days for water permeability test. The results showed that the para rubber latex reduced workability of fresh concrete but still in the acceptable range of design. The compressive strength increases in the mixtures containing of para rubber latex of 0.5, 1.0, and 1.5 percent by weight of water but dramatical decreases found in 2.0 mixture. The water permeability of para rubber latex concrete was related to its compressive strength, significantly. The concrete with replacement rate of 1.5 percent showed the compressive strength increase by 20 percent and the water permeability decrease by 60 percent comparing the control concrete.
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