Investigation on the compressive strength and bulk density of Concrete Hollow Blocks (CHB) with PolyproPylene (PP) pellets as partial replacement for sand

Date

4-2013

Degree

Bachelor of Science in Civil Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Marish S. Madlangbayan

Committee Member

Joseph M. Caburnay April Joy B. Coleta

Abstract

Urbanization has made plastics a necessity today. However, plastics are nonbiodegradable and the increasing generation of plastics creates a problem of disposal. In the Philippines, this problem is exacerbated because of lack of sanitary landfills. In this study, polypropylene, which is subset of these plastics, were pelletized and incorporated in concrete hollow blocks as partial replacement for sand. Tests such as determination of the specific gravity of the materials, and sieve analysis and fineness modulus of the aggregates were performed before molding. Five batches of specimens, each with 0%,10%, 20%, 30%, 40% polypropylene replacement (by volume), were molded and cured for 28 days. The compressive strength and bulk density of the specimens from these batches were determined and compared. Results showed that compressive strength decreases as percent replacement increases, except when 10% employed to further discuss the results. It was concluded that polypropylene pellets, up to 10% replacement, has potential as partial replacement for sand, provided that economic constraints are satisfied.

Language

English

Location

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

Call Number

LG 993.5 2013 E63 L37

Document Type

Thesis

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