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Dynamic strength of polymer modified and fiber-reinforced concretes

✍ Scribed by J. Bhargava; Å. Rehnström

Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
479 KB
Volume
7
Category
Article
ISSN
0008-8846

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✦ Synopsis

For evaluating the performance of concrete constructions such as foundation piles, a knowledge of the dynamic properties of concrete is also required. Some results of a study of concrete under dynamic impact loading are given in this paper. ~ lOOx200 mm cylindrical specimens were cast from plain and polymer cement concrete; some of the specimens were reinforced by polypropylene fibers also. The experimental details of the Hopkinson split-bar method used are described. The dynamic strength of concrete obtained was 40-45 % higher than the static strength. Compared to normal concrete, polymer cement concrete showed 30-35 % higher dynamic strength, and significantly higher energy transmission capacity.

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