Conducted by ESSU
, Started on 2008 -
Completed on 2008
Completed
Published
Total Page Views : 1084
Total Likes : 162
Unlike
This study was conducted to evaluate the concrete hollow block (CHB) with coco coir fiber in aggregates. As technology innovation, coco coir fiber was incorporated as one of the aggregates in CHB making. The quality attributes of the aggregates were assessed in terms of sieve analysis, moisture content, unit weight/mass determination, specific gravity and absorption. Compressive strength tests of the hollow block after 7 days curing period were also conducted to determine the maximum amount of compressive axial force the material can withstand without failure using a Universal Testing machine. Coco coir fibers were shredded out from its husk, air-dried, segregated and cut to lengths of eight to ten millimeters (8mm-10mm) to prevent these from bending during the mixing and production process. Both bristle and mattress fibers were utilized in this study. The use of coco coir fiber as a component aggregate significantly affected the compressive strength of concrete hollow block (CHB). The concrete hollow block without coir fiber (0% coco coir fiber) had lower compressive strength compared to the concrete hollow block with 6% and 8% coco coir fiber which yielded a higher compressive strength and passed the standards set by the American Society for Testing and Materials (ASTM) C129 for non-load bearing CHB. Considering the DPWH standards, all CHB tested passed. It is highly proposed and recommended that for a better and good quality concrete hollow block (CHB), the 1:2:3 design mix with 8% coco coir fiber be adopted for it is more economical and durable due to the crack control capability of coco coir fiber.