Property characterization of abaca-fiber-reinforced pervious concrete with recycled concrete as partial aggregate replacement / Carlos Ivan B. Ibabao, Aira Joanna S. Masaganda, Jerome O. Mercado, Joshua C. Rubio, Ma. Tracey S. Valdepeña, James Patrick M. Verania .--

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Ibabao, Carlos Ivan B [author ]

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TextPublication details: Manila: Technological University of the Philippines, 2023.Description: xviii, 138pages: 29cm. +1 CD-ROM ( 4 3/4in.)Content type:

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BTH TA 145 I23 2023

Dissertation note: College of Engineering .-- Bachelor of Science in Civil Engineering: Technological University of the Philippines, 2023. Summary: Construction and demolition wastes (CDW) pose a challenge to developing countries, including the Philippines. The recycling of CDW had been known as a desirable solution, hence, the insufficiency of information and authority in CDW management hinders this objective. This study focuses on Recycled Concrete Aggregates (RCA) sourced from demolition sites in Manila, Philippines, as it intends to reduce the volume of CDW and by promoting sustainability in the field of construction. The study aims to determine the physical and mechanical properties of RCA pervious concrete with abaca fiber reinforcement. In this study, the RCA ranges from 4.5 mm to 19 mm in sizes with partially and fully replaced coarse aggregates in three sets of pervious concrete mixes. Included in the mix for pervious concrete are cement, natural and recycled aggregate, silica fume, abaca fiber (Musa textilis), and water. The first set had Ordinary Portland Cement (OPC) and coarse aggregate, the second set used OPC with partial and full RCA replacement at 20%, 25%, 30%, and 100%, and the third set used OPC with partial RCA replacement at 20%, 25%, 30%, and 100% with 0.15% abaca fiber and 5% silica fumes. The pervious concrete mixes were subjected to ASTM C136 and ASTM C33 crushing and sieving procedures. Compressive and flexural strengths were also measured for the determination of its mechanical properties, whereas the results were expected to be comparable to the control sample in strength. Based on the results, the use of recycled concrete aggregates has found similarities in its physical qualities as natural coarse aggregates, although the results vary on the properties tested. The amount of recycled concrete aggregate (RCA) that produced the strongest results was found to be 25%, especially when combined with silica fumes and abaca fiber, with results of 5.992 MPa, 6.594 MPa, 6.748 MPa for its compressive strength on its 7th, 14th, and 28th day, and 2.435 MPa for the flexural strength. Comparing RCA mixes with and without abaca fiber reinforcing, it was found that the former had greater strength.

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Holdings
Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TA 145 I23 2023 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0003930

Thesis (undergraduate)

College of Engineering .-- Bachelor of Science in Civil Engineering: Technological University of the Philippines, 2023.

Includes bibliography:

Construction and demolition wastes (CDW) pose a challenge to developing
countries, including the Philippines. The recycling of CDW had been known as a desirable
solution, hence, the insufficiency of information and authority in CDW management
hinders this objective. This study focuses on Recycled Concrete Aggregates (RCA) sourced
from demolition sites in Manila, Philippines, as it intends to reduce the volume of CDW
and by promoting sustainability in the field of construction. The study aims to determine
the physical and mechanical properties of RCA pervious concrete with abaca fiber
reinforcement. In this study, the RCA ranges from 4.5 mm to 19 mm in sizes with partially
and fully replaced coarse aggregates in three sets of pervious concrete mixes. Included in
the mix for pervious concrete are cement, natural and recycled aggregate, silica fume,
abaca fiber (Musa textilis), and water. The first set had Ordinary Portland Cement (OPC)
and coarse aggregate, the second set used OPC with partial and full RCA replacement at
20%, 25%, 30%, and 100%, and the third set used OPC with partial RCA replacement at
20%, 25%, 30%, and 100% with 0.15% abaca fiber and 5% silica fumes. The pervious
concrete mixes were subjected to ASTM C136 and ASTM C33 crushing and sieving
procedures. Compressive and flexural strengths were also measured for the determination
of its mechanical properties, whereas the results were expected to be comparable to the
control sample in strength. Based on the results, the use of recycled concrete aggregates
has found similarities in its physical qualities as natural coarse aggregates, although the
results vary on the properties tested. The amount of recycled concrete aggregate (RCA)
that produced the strongest results was found to be 25%, especially when combined with
silica fumes and abaca fiber, with results of 5.992 MPa, 6.594 MPa, 6.748 MPa for its
compressive strength on its 7th, 14th, and 28th day, and 2.435 MPa for the flexural
strength. Comparing RCA mixes with and without abaca fiber reinforcing, it was found
that the former had greater strength.

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