Effects of powdered engshells as partial cement substitute in flexural strength of cement mortar/ Roze Anne G. Campos, Andrea Grace B. Casas, Mariel Mikah B. Jaranilla, Justiine Joy A. Maderazo, Warren P. Manaog, Ma. Sophie Diana T. Mosquera .--

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Campos, Roze Anne G [author ]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippiines, 2022.Description: ix, 93pages: 29cm. +1 CD-ROM (4 3/4in.)Content type:

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BTH TH 438 C36 2022

Dissertation note: College of Industrial Technology .-- Bachelor of Engineering Technology major in Construction Technology: Technological University of the Philippines, 2022. Summary: Cement is a nonrenewable resource, and its high demand is due to ongoing exploration to meet the development goal. These could lead to natural resource depletion without replacement, resulting in a severe environmental crisis in the future. Because of this risk, alternative construction materials resources must be investigated for replacement purposes. Because cement mortar is a critical element of masonry construction, the rising demand for cement has converted the cement industry into the second greatest greenhouse gas producer, contributing to global warming. Raw material such as eggshells is introduced as a partial substitute for cement in the construction field. Therefore, this paper aims to present mortar's water absorption and flexural strength by incorporating powdered eggshells. Powdered eggshell was used as a partial substitute for cement-based mortar in four mortar mixtures of 0%, 8%, 10%, and 13% of powdered eggshell. A total of 24 mortar cubes were prepared, with six mortar samples for each mixture. All of the specimens are cured in the air. Each mixture of mortar consists of 1 sample for the water absorption test and 5 samples for the flexural test at 24 hours. The result obtained that 13% partial substitution of cement with powdered eggshell produced the highest flexural strength compared to the controlled mixture but only third on the water absorption. The powdered eggshell as a partial substitute for cement in producing mortar still presented the opposite relationship between flexural strength and water absorption, and this experimentation possesses the potential to be used as sustainable construction materials.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis CIT	TUP Manila Library	Thesis Section-2nd floor	BTH TH 438 C36 2022 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0005854

Thesis (undergraduate)

College of Industrial Technology .-- Bachelor of Engineering Technology major in Construction Technology: Technological University of the Philippines, 2022.

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Cement is a nonrenewable resource, and its high demand is due to ongoing exploration to
meet the development goal. These could lead to natural resource depletion without
replacement, resulting in a severe environmental crisis in the future. Because of this risk, alternative construction materials resources must be investigated for replacement
purposes. Because cement mortar is a critical element of masonry construction, the rising
demand for cement has converted the cement industry into the second greatest
greenhouse gas producer, contributing to global warming. Raw material such as eggshells
is introduced as a partial substitute for cement in the construction field. Therefore, this
paper aims to present mortar's water absorption and flexural strength by incorporating
powdered eggshells. Powdered eggshell was used as a partial substitute for cement-based
mortar in four mortar mixtures of 0%, 8%, 10%, and 13% of powdered eggshell. A total
of 24 mortar cubes were prepared, with six mortar samples for each mixture. All of the
specimens are cured in the air. Each mixture of mortar consists of 1 sample for the water
absorption test and 5 samples for the flexural test at 24 hours. The result obtained that
13% partial substitution of cement with powdered eggshell produced the highest flexural
strength compared to the controlled mixture but only third on the water absorption. The
powdered eggshell as a partial substitute for cement in producing mortar still presented
the opposite relationship between flexural strength and water absorption, and this
experimentation possesses the potential to be used as sustainable construction materials.

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