Properties of Concrete using eggshell and coconut shell as partial fine and coarse aggregate replacement/ Danga, Cedreaux R. [and five others].

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Danga, Cedreaux R

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Material type: Text

TextManila : Technological University of the Philippines, 2019Description: 122 pages; 28 cm. +1 CD-ROM (4 3/4 in.)Content type:

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BTH TA 165 D36 2019

Dissertation note: College of Engineering-- Bachelor of Science in Civil Engineering, Technological university of the Philippines, 2019. Abstract: Rapid urbanization and population growth lead to increasing of solid wastes from industrial, mining, domestic and agricultural activities. Eggshells are one of the most common waste materials generated from residential areas and fast food industries. Previous studies showed that eggshell wastes are suitable in road construction and other building construction application. Coconut shells are one form of agricultural waste that also showed good results when used in concrete. This study aims to characterize the properties of concrete using eggshell as partial fine aggregate replacement and coconut shell as partial coarse aggregate replacement. Eggshells and coconut shells collected were cleaned, sun-dried and crushed. Mix design with 5%, 10% and 15% eggshell replacement with varying amount of coconut shell from 10% to 30%, with 10% increment, was used in the study. Concrete specimens underwent mechanical property tests such as compressive, split tensile and flexural strength. The mix design containing 15% eggshell and 10% coconut shell showed the highest results as compared to the control mix design. The compressive, split tensile, and flexural strength for this mix is 15.86 MPa, 2.56 MPa and 2.52 MPa, respectively. After 28 days, the mix designs that attained the highest, lowest and middle strength were subjected to Scanning Electron Microscopy (SEM). The result of the SEM analysis showed that the bond within the particles of the concrete is not good.

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Holdings
Item type	Current library	Shelving location	Call number	Status	Notes	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TA 165 D36 2019 (Browse shelf(Opens below))	Not for loan	For room use only		BTH0003462

Thesis (Undergraduate)

College of Engineering-- Bachelor of Science in Civil Engineering, Technological university of the Philippines, 2019.

Rapid urbanization and population growth lead to increasing of solid wastes from industrial, mining, domestic and agricultural activities. Eggshells are one of the most common waste materials generated from residential areas and fast food industries. Previous studies showed that eggshell wastes are suitable in road construction and other building construction application.
Coconut shells are one form of agricultural waste that also showed good results when used in concrete. This study aims to characterize the properties of concrete using eggshell as partial fine aggregate replacement and coconut shell as partial coarse aggregate replacement. Eggshells and coconut shells collected were cleaned, sun-dried and crushed. Mix design with 5%, 10% and 15% eggshell replacement with varying amount of coconut shell from 10% to 30%, with 10% increment, was used in the study. Concrete specimens underwent mechanical property tests such as compressive, split tensile and flexural strength. The mix design containing 15% eggshell and 10% coconut shell showed the highest results as compared to the control mix design. The compressive, split tensile, and flexural strength for this mix is 15.86 MPa, 2.56 MPa and 2.52 MPa, respectively. After 28 days, the mix designs that attained the highest, lowest and middle strength were subjected to Scanning Electron Microscopy (SEM). The result of the SEM analysis showed that the bond within the particles of the concrete is not good.

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