Laboratory studies on polypropylene fibers and microsilica gel
Its Effect on Compressive Strength of 7 and 42 Day Samples of High Strength Concrete (C40)
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The present study tried to prepare laboratory samples and research on the compressive strength of microsilica reinforced concrete and polypropylene fibers With the proposed mixing percentages, the maximum compressive strengths in C40 concrete should be evaluated and analyzed. For this purpose, 10 proposed mixing designs with control concrete samples (without fibers and gels) were prepared in 8 groups and the concrete at 7 and 42 days of age was subjected to compressive strength test using a hydraulic jack machine in a concrete laboratory. The samples are prepared in the form of cubes with dime...
The present study tried to prepare laboratory samples and research on the compressive strength of microsilica reinforced concrete and polypropylene fibers With the proposed mixing percentages, the maximum compressive strengths in C40 concrete should be evaluated and analyzed. For this purpose, 10 proposed mixing designs with control concrete samples (without fibers and gels) were prepared in 8 groups and the concrete at 7 and 42 days of age was subjected to compressive strength test using a hydraulic jack machine in a concrete laboratory. The samples are prepared in the form of cubes with dimensions of 150 × 150 × 150 mm. In the end, it was concluded that the mixing design with the title of C%5M%1.75PP (Design No. 6) containing 5% microsilica gel and 1.75% polypropylene fibers as the optimal mixing design at the ages of 7 and 42 days in terms of it is known to have the highest compressive strength. This mixing design at the ages of 7 and 42 days on average (in groups A to H) has a compressive strength of 46.97 and 96.18 MPa, respectively, which compared to the control concrete sample Increased by 47.33% and 19.21%, respectively.
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