Investigation on the compressive strength and bulk density of CHB with type A WRA and with shredded plastics from the MRF of Teresa, Rizal, Philippines as partial replacement for sand

Date

7-2015

Degree

Bachelor of Science in Industrial Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jonathan David D. Lasco

Abstract

Today, several methods are done to mitigate the problem in solid waste management. Incorporating waste plastics into the concrete hollow blocks (CHB) is practiced by the Materials Recovery Facility (MRF) of Teresa, Rizal, Philippines. The current percent shredded plastic replacement of the MRF is at 5% by volume. To determine if more shredded plastics can be included in the CHB without decreasing its compressive strength and also making the CHB lighter, the author investigated the effectiveness of CHB with shredded plastics as partial replacement for sand and Type A water reducing admixture (WRA). Five batches of specimen (0%, 5%, 10%, 15% and 20% shredded plastic replacement by mass) were molded and cured for 28 days. The specimens were tested for compressive strength and bulk density. Commerical CHBs were also brought for comparison of its properties. Results showed that the compressive strength and bulk density of the CHB is inversely proportional with the percent shredded plastic replacement. Based on tests and analysis, 5% is the optimum percent shredded plastic replacement. However, this percent replacement is similar to the CHB of the MRF. Therefore, the WRA does not improve the compressive strength of the CHB with shredded plastics.

Language

English

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993 2015 E63 /S26

Document Type

Thesis

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