Evaluation of concrete hollow blocks fabricated with coconut coir, shredded wood and oyster shells / by Erwin R. Medina.

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 1998.Description: 67p pages : illustrations ; 28 cmContent type:
  • text
Media type:
  • unmediated
Carrier type:
  • volume
Subject(s): DDC classification:
  • 693.5 M46 1998
Online resources: Production credits:
  • Science High School, College of Education (CED)
Abstract: MEDINA, ERWIN R., Applied Research IV (Gen. Science Curriculum), Cavite State University, Indang, Cavite, April 1998, “Evaluation of Concrete Hollow Blocks Fabricated With Coconut Coir, Shredded Wood and Oyster Shells”, Advisers: Mr. Renato B. Cubilla Mr. Tadeo M. Mojica The study entitled “Evaluation of Concrete Hollow Blocks Fabricated With Coconut Coir, Shredded Wood and Oyster Shells” was undertaken to determine the effects of using coconut coir, shredded wood and oyster shells on the physical properties of fresh and hardened concrete hollow block. The properties of the fresh concrete are; consistency, water gain, setting shrinkage, entrained air, density, and hardening and the properties of hardened concrete are compressive strength, volume changes, mass changes and density changes. The study also determined the economic feasibility of the concrete hollow blocks fabricated with the said materials. The study was conducted at Tambo Ilaya, Indang, Cavite and Provincial Engineer’s Office, DPWH, Trece Martires City, Cavite from November 1997 to February 1998. The proportions used in the study were, Treatment 1. 3 parts sand to 1 part coconut coir; Treatment 2. 3 parts sand to 1 part shredded wood, Treatment 3. 3 parts sand to 1 part oyster shells, Treatment 4. 6 parts sand to 1 part coconut coir and 1 part shredded wood, Treatment 5. 6 parts sand to 1 part coconut coir and 1 part oyster shells, Treatment 6. 6 parts sand to 1 part shredded wood and 1 part oyster shells; Treatment 7. 9 parts sand to 1 part coconut coir, 1 part shredded wood and 1 part oyster shells and Treatment 8. pure sand. Highly significant results were obtained in the parameters such as mass, density, consistency, bleeding or water gain, setting shrinkage, entrained air, density, and hardening for the fresh concrete; mass, density, mass changes, density changes for the hardened concrete; and the production cost of each concrete hollow blocks produced. However, non-significant results were gathered from volume and volume changes of the hardened concrete hollow block. It was proven that it is more advisable to use coconut coir, shredded wood and oyster shells as extender aggregate for the production of concrete hollow blocks than using pure sand alone in terms of strength and economic feasibility.
Star ratings
    Average rating: 0.0 (0 votes)
Holdings
Item type Current library Collection Call number Materials specified URL Status Notes Date due Barcode
Theses / Manuscripts Theses / Manuscripts Ladislao N. Diwa Memorial Library Theses Section Non-fiction 693.5 M46 1998 (Browse shelf(Opens below)) Link to resource Room use only RS-279 00000775

Applied Research IV (Agri-Science Curriculum) Cavite State University.

Includes bibliographical references.

Science High School, College of Education (CED)

MEDINA, ERWIN R., Applied Research IV (Gen. Science Curriculum), Cavite State University, Indang, Cavite, April 1998, “Evaluation of Concrete Hollow Blocks Fabricated With Coconut Coir, Shredded Wood and Oyster Shells”,

Advisers: Mr. Renato B. Cubilla
Mr. Tadeo M. Mojica

The study entitled “Evaluation of Concrete Hollow Blocks Fabricated With Coconut Coir, Shredded Wood and Oyster Shells” was undertaken to determine the effects of using coconut coir, shredded wood and oyster shells on the physical properties of fresh and hardened concrete hollow block. The properties of the fresh concrete are; consistency, water gain, setting shrinkage, entrained air, density, and hardening and the properties of hardened concrete are compressive strength, volume changes, mass changes and density changes. The study also determined the economic feasibility of the concrete hollow blocks fabricated with the said materials. The study was conducted at Tambo Ilaya, Indang, Cavite and Provincial Engineer’s Office, DPWH, Trece Martires City, Cavite from November 1997 to February 1998.

The proportions used in the study were, Treatment 1. 3 parts sand to 1 part coconut coir; Treatment 2. 3 parts sand to 1 part shredded wood, Treatment 3. 3 parts sand to 1 part oyster shells, Treatment 4. 6 parts sand to 1 part coconut coir and 1 part shredded wood, Treatment 5. 6 parts sand to 1 part coconut coir and 1 part oyster shells, Treatment 6. 6 parts sand to 1 part shredded wood and 1 part oyster shells; Treatment 7. 9 parts sand to 1 part coconut coir, 1 part shredded wood and 1 part oyster shells and Treatment 8. pure sand.

Highly significant results were obtained in the parameters such as mass, density, consistency, bleeding or water gain, setting shrinkage, entrained air, density, and hardening for the fresh concrete; mass, density, mass changes, density changes for the hardened concrete; and the production cost of each concrete hollow blocks produced. However, non-significant results were gathered from volume and volume changes of the hardened concrete hollow block.

It was proven that it is more advisable to use coconut coir, shredded wood and oyster shells as extender aggregate for the production of concrete hollow blocks than using pure sand alone in terms of strength and economic feasibility.

Submitted copy for the University Library RS-279

Copyright © 2023. Cavite State University | Koha 23.05