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Proposed study of pili nut (Canarium ovatum) shells as coarse aggregate for concrete / by John Paolo D. Bayaborda and Krizna Joy E. Dolorm

By:

Bayaborda, John Paolo D [author]

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Material type: Text

TextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 2019.Description: xx , 72 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

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volume

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DDC classification:

693.5 B34 2018

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Production credits:

College of Engineering and Information Technology (CEIT), Department of Civil Engineering

Abstract: BAYABORDA, JOHN PAOLO D. and DOLOR, KRIZNA JOY E. Proposed Study of Pili Nut (Canarium ovatum) Shells as Coarse Aggregate for Concrete. Undergraduate Thesis. Bachelor of Science in Civil Engineering. Cavite State University, Indang, Cavite. June 2018. Adviser: Renato 13. Cubilla. The study was conducted to determine the structural capacity of dried Pill nut shells as coarse aggregate for concrete. Specifically, the study aimed to determine the most efficient proportion of pill nut shells as substitute to coarse aggregate in terms of workability, density, economy and compressive strength after 7th, 14th and 28th day of concrete. This study also focused on the evaluation of different design mixtures of concrete using 0, 25, 50, 75 and 100 percent of dried pili nut shells as replacement to the total volume of coarse aggregate. Among the four proposed design mixtures with dried pili nut shells, Treatment 3, which had 50 percent dried pill nut shells, attained the highest compressive strength. However, it was lower as compared to the compressive strength of the ordinary mixture (100 percent gravel). Their compressive strengths differ significantly with each other at 1 percent level of significance. Based on the results of slump test, as the proportion of dried pill nut shells increases, the slump also increases. In other words, dried pill nut shells made the concrete more workable as compared to normal concrete mix. Also, as the percentage of dried pili nut shells increases, the less dense the concrete become. Based on the cost analysis, treatments with higher content of dried pili nut shells were less expensive as compared to the ordinary concrete mixture. Even so, dried pili nut shells were not effective enough as coarse aggregate for concrete because it leads to compressive strength reduction. Based on the findings of the study, the following recommendations are formulated: (1) the application of dried pili nut shell as aggregate to concrete based on like the specimen is suitable only for non-load bearing members the weaknesses of the s slab-on-fill and partition walls; be tested also in different parameters and characteristics of concrete such as air penetrating characteristic and its flexural stress; (3) consider the arrangement of the broken pili nut shells whether horizontally, vertically or irregular as it may affect the strength of pili nut shells as coarse aggregate in concrete; (4) add admixture to enhance the compressive strength of the pili nut shell concrete.

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Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	693.5 B34 2018 (Browse shelf(Opens below))		Room use only	T-7831		00076599

Thesis (Bachelor of Science in Civil Engineering) Cavite State University.

Includes bibliographical references.

College of Engineering and Information Technology (CEIT), Department of Civil Engineering

BAYABORDA, JOHN PAOLO D. and DOLOR, KRIZNA JOY E. Proposed Study of Pili Nut (Canarium ovatum) Shells as Coarse Aggregate for Concrete. Undergraduate Thesis. Bachelor of Science in Civil Engineering. Cavite State University, Indang, Cavite. June 2018. Adviser: Renato 13. Cubilla.

The study was conducted to determine the structural capacity of dried Pill nut shells as coarse aggregate for concrete. Specifically, the study aimed to determine the most efficient proportion of pill nut shells as substitute to coarse aggregate in terms of workability, density, economy and compressive strength after 7th, 14th and 28th day of concrete. This study also focused on the evaluation of different design mixtures of concrete using 0, 25, 50, 75 and 100 percent of dried pili nut shells as replacement to the total volume of coarse aggregate.

Among the four proposed design mixtures with dried pili nut shells, Treatment 3, which had 50 percent dried pill nut shells, attained the highest compressive strength. However, it was lower as compared to the compressive strength of the ordinary mixture (100 percent gravel). Their compressive strengths differ significantly with each other at 1 percent level of significance. Based on the results of slump test, as the proportion of dried pill nut shells increases, the slump also increases. In other words, dried pill nut shells made the concrete more workable as compared to normal concrete mix. Also, as the percentage of dried pili nut shells increases, the less dense the concrete become. Based on the cost analysis, treatments with higher content of dried pili nut shells were less expensive as compared to the ordinary concrete mixture. Even so, dried pili nut shells were not effective enough as coarse aggregate for concrete because it leads to compressive strength reduction.

Based on the findings of the study, the following recommendations are formulated: (1) the application of dried pili nut shell as aggregate to concrete based on like the specimen is suitable only for non-load bearing members the weaknesses of the s slab-on-fill and partition walls; be tested also in different parameters and characteristics of concrete such as air penetrating characteristic and its flexural stress; (3) consider the arrangement of the broken pili nut shells whether horizontally, vertically or irregular as it may affect the strength of pili nut shells as coarse aggregate in concrete; (4) add admixture to enhance the compressive strength of the pili nut shell concrete.

Submitted to the University Library March 13, 2019 T-7831