000			02747ntm a22002777a 4500
003			OSt
005			20240213111655.0
008			230824b2020 |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM
050			_aBTH TA 440 _bB47 2020
100	1		_aBermel, Jude Rhex F. _eauthor
245	0	0	_aDevelopment of concrete pavement blocks using crushed dog conch shell " sikad shell" as partial substitute to fine aggregates/ _cJude Rhex F. Bermel, Juanito A. Casihan jr., and Mark Arjohn A. Visperas
264			_aManila: _bTechnological University of the Philippines, _c2020
300			_a62pages: _c28cm. _eCD-ROM (4 3/4 in.) _bIllustration.
500			_aThesis (undergraduate) --
502			_aCollege of Industrial Technology: _bBachelor of Technology major in Civil Engineering Technology, _cTechnological University of the Philippines, _d2020.
504			_aIncludes bibliography
520			_aThe whys and wherefores of the increase of building material cost are the exhaustion of raw materials. This research develops a Concrete Pavement Block Using Crushed Dog Conch Shell "Sikad Shell" as Partial Substitute to Fine Aggregates. CPB's Using Crushed Dog Conch Shell as Partial Substitute to Fine Aggregates were manufactured using 90/10, 70/30, and 50/50 cement: fine aggregates proportion. All tests are based on American Society for Testing and Materials (ASTM) Specification (936). For the physical property test, the specimen with the mixed design of 90:10 with the curing time of 7 days, 14 days, and 28 days had the highest compressive strength compared to the specimen with the mixed design of 70:30 and 50:50. The 90:10 mixed design was also increasing by 0.6% up to 2.8% every curing time, but it did not pass the compressive strength standard of concrete. In the Philippine standard (DPWH Standard Specification for Concrete Block Slope Protection, Item 1728), a CPB mixture of 10% meets their standard for compressive strength, which is 20.7mPa. For the water absorption test, the specimen with the mixed design of 70:30 and 90:10 with curing time of 7 days, mixed design 90:10, 70:30 with the curing time of 14 days, and mixed design of 90:10 with the curing time of 28 days have passed the standard test for water absorption test. This shows that the Crushed Dog Conch Shell "Sikad Shell" barely met the criteria but can be improved upon through further study.
650	1	0	_aPavements _vdesign and construction
650	1	0	_aConcretes _vadditives
700	1		_aCasihan, Juanito A. jr. _eauthor
700	1		_aVisperas, Mark Arjohn A. _eauthor
856			_uhttps://drive.google.com/file/d/1rCX3PULcTrp0mz_ceXWKnjY5iqI0RsbL/view?usp=sharing _yPreliminary pages
942			_2lcc _cBTH CIT _n0
999			_c3942 _d3942