000			03040nam a22003257a 4500
003			OSt
005			20250703095013.0
008			250703b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH TA 145 _bA46 2023
100			_aBayhon, Bren Jousef T. _eauthor
245			_aProperty characterization of concrete paving blocks using recycled concrete aggregates/ _cBren Jousef T. Bayhon, Daniel G. Dela Cruz, Jeremiah O. Delgado, Kristine Cameron D. Felix, and Erries B. Galvez.--
260			_aManila: _bTechnological University of the Philippines, _c2023.
300			_axvi, 192pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aBachelor's thesis
502			_aCollege of Engineering.-- _bBachelor of science in civil engineering: _cTechnological University of the Philippines, _d2023.
504			_aIncludes bibliographic references and index.
520			_aConstruction 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.
650			_aConcrete aggregates
650			_aPaving blocks
650			_aRca
700			_aDela Cruz, Daniel G. _eauthor
700			_aDelgado, Jeremiah O. _eauthor
700			_aFelix, Kristine Cameron D. _eauthor
700			_aGalvez, Erries B. _eauthor
942			_2lcc _cBTH COE _n0
999			_c30085 _d30085