The Efficacy of Carica Papaya and Ipomea Batatas asan Admixture to Improve the Compressive Strength of Concrete Hollow Block

Abstract

INTRODUCTION

The study focuses on the extract of papaya leaves (Carica Papaya) and peel of sweet potato (Ipomea batatas) as an admixture in concrete for improving its compressive strength and water absorption.

METHODS

The researcher used extracts from the leaves of papaya (Carica Papaya) and peel of sweet potato (Ipomea batatas). Compressibility test and water absorption were conducted to identify the effect of the said admixture to the compressive strength of concrete hollow block.

RESULTS

The CHB with admixture achieved an 80 psi for compressibility test for papaya leaves and sweet potato peel achieved 352 psi. It has an 8.4 % water absorbability test.

DISCUSSIONS

Concrete hollow blocks are commonly used in the construction industry. Thus, some of the hollow blocks that were used by some industries are not strong enough to build buildings and infrastructures. The results on the test have showed that the Carica Papaya and Ipomea Batatas as an admixture to a concrete hollow block can increase its compressive strength. Wherein it shows high results for compressibility test and water absorbability test that can improve the hollow block's compressive strength.