Property characterization of concrete paving blocks using recycled concrete aggregates/
Bayhon, Bren Jousef T.
Property characterization of concrete paving blocks using recycled concrete aggregates/ Bren Jousef T. Bayhon, Daniel G. Dela Cruz, Jeremiah O. Delgado, Kristine Cameron D. Felix, and Erries B. Galvez.-- - Manila: Technological University of the Philippines, 2023. - xvi, 192pages: 29cm.
Bachelor's thesis
College of Engineering.--
Includes bibliographic references and index.
Construction and demolition waste generation has increased over time as the world
continues to develop, and an influx of waste has steadily filled up backfills which are left
unused while it continues to degrade and pollute the surrounding environment. While
studies have been done internationally about its potential usage as recycled material for
concrete production, limited local studies have been done regarding this topic. Its
application as a structural member is still experimental as it shows varying results as these
wastes are from varying buildings or construction wastes. This study focused on the
property characterization of recycled concrete aggregates (RCA) and the concrete paving
blocks with RCA. The blocks were tested in accordance to the American Society for
Testing and Materials (ASTM) specifications for compressive strength and water
absorption. A beam obtained from the demolition of an elementary school in Novaliches,
Quezon City was crushed into RCAs. The RCA was then utilized for full replacement of
standard-coarse aggregates for the prepared design mixes. Different design mixes (Class
AA, A, B, and C) and water-to-cement ratios (0.30, 0.40, 0.50) were used in the production
of the concrete paving blocks. Physical and mechanical property test results showed the
highest average compressive strength of 38.50 MPa which is below the required specified
by ASTM C-936 Standard Specification for Solid Concrete Interlocking Paving Units and
the highest water absorption rate of 3.50% which is standard for paving block applications
which should be below 5%. Upon consideration of these test results, among the prepared
design mixes, the most desirable design mix is the Class AA mix with the optimal water-
to-cement ratio being 0.4.
Concrete aggregates
Paving blocks
Rca
BTH TA 145 / A46 2023
Property characterization of concrete paving blocks using recycled concrete aggregates/ Bren Jousef T. Bayhon, Daniel G. Dela Cruz, Jeremiah O. Delgado, Kristine Cameron D. Felix, and Erries B. Galvez.-- - Manila: Technological University of the Philippines, 2023. - xvi, 192pages: 29cm.
Bachelor's thesis
College of Engineering.--
Includes bibliographic references and index.
Construction and demolition waste generation has increased over time as the world
continues to develop, and an influx of waste has steadily filled up backfills which are left
unused while it continues to degrade and pollute the surrounding environment. While
studies have been done internationally about its potential usage as recycled material for
concrete production, limited local studies have been done regarding this topic. Its
application as a structural member is still experimental as it shows varying results as these
wastes are from varying buildings or construction wastes. This study focused on the
property characterization of recycled concrete aggregates (RCA) and the concrete paving
blocks with RCA. The blocks were tested in accordance to the American Society for
Testing and Materials (ASTM) specifications for compressive strength and water
absorption. A beam obtained from the demolition of an elementary school in Novaliches,
Quezon City was crushed into RCAs. The RCA was then utilized for full replacement of
standard-coarse aggregates for the prepared design mixes. Different design mixes (Class
AA, A, B, and C) and water-to-cement ratios (0.30, 0.40, 0.50) were used in the production
of the concrete paving blocks. Physical and mechanical property test results showed the
highest average compressive strength of 38.50 MPa which is below the required specified
by ASTM C-936 Standard Specification for Solid Concrete Interlocking Paving Units and
the highest water absorption rate of 3.50% which is standard for paving block applications
which should be below 5%. Upon consideration of these test results, among the prepared
design mixes, the most desirable design mix is the Class AA mix with the optimal water-
to-cement ratio being 0.4.
Concrete aggregates
Paving blocks
Rca
BTH TA 145 / A46 2023