Ultimate Compressive Strengthening of Low Strength Concrete by Polyester Fabric

Chichaya Boonmee, KittIpoom Rodsin


This paper aims to investigate the forms of increasing compressive strength of low-strength concrete. It is believed that this type of structure is generally found in developing countries in which the quality of design and construction material is very low. However, standardizing the concrete by using reinforcement technique costs high price which entails owners’ disinterest. In addition, most of buildings in those countries are commonly located in the seismic hazard zones which cause a high risk of the destruction from earthquakes. With these references, it is assumed that applying inexpensive as well as easy-to-purchase material, such as polyester fabric can improve the compressive strength of the concrete. The experiment was classified into two main groups depending on their compressive strength including 50 ksc and 75 ksc Each group consisted of three confined concrete specimens which were confined with the polyester fabric 2 rounds, 4 rounds and 6 rounds as well as three un-confined concrete specimens. The results demonstrated that the concrete specimens which were confined with the polyester fabric in Group 1 (57.56 ksc) could not increase the compressive strength. On the other hand, those of Group 2 (80.01ksc) could increase the compressive strength of the concrete approximately 30.98 – 42.16 % from fourround confinement.


Low-Strength Concrete, Confinement, Polyester

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