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| Evaluation the Effects of Natural polymers (Powder of Gum Arabic) as Admixture in Concrete Mixes |
Mashair.A.Mohamed, Ibrahim.Y.I.Elgady, Muhab.S.S.Hassanien
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Abstract:
An experimental program was conducted to investigate the effect of natural polymers (Powder Gum Arabic) and evaluate the efficiency on fresh and hardened concrete for trying to produce a concrete with high strength. an experimental study was carried out to test for compressive strength of concrete for three types of concrete mixes each mixture were casted in the form of cubes were studied for 28 days, one of those mentioned mixes is a (control mix). Finally the results are compared with the normal conventional concrete (control mix). The main aim of this investigation is first to prepare the strength of concrete of compressive strength 30N/mm2 with locally available ingredient and then to study the effect of different proportion of fiber waste and fiber glass in the mix and to find the optimum range of the effective proportion. The various proportions considered are 0.4%, 0.6%, 0.8%, and 1.0 of weight of cement. the research was shown that the effect of Gum Arabic on the fresh concrete that the workability increases as the proportion of Gum Arabic additives increases, and for the hardened concrete the specific compressive strength increases up to 0.6% of the Gum Arabic content of cement weight, and also show's beyond these mention proportioned that the compressive strength decreases.
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