000 02525nam a2200325 i 4500
003 CSPC
005 20240318124715.0
008 240318s2022 ph a mab 000 0 eng d
040 _cCSPC
_aCSPC
_beng
090 _aUTH BSCE Ag932m 2022
100 1 _aAguila, Rhei Angelo C.,
_eauthor.
245 1 0 _aMortarless concrete hollow blocks with rice straw ash /
_cRhei Angelo C. Aguila [and 4 others].
300 _a102 leaves
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
338 _avolume
_2rdacarrier
502 _aUndergraduate Theses (BSCE) - Civil Engineering.
_cCamarines Sur Polytechnic Colleges, 2022.
504 _aIncludes bibliographical references.
520 3 _aThis study is about developing mortarless concrete hollow blocks (CHB) mixed with rice straw ash (RSA). The researchers tested whether there is a significant difference between the properties of plain mortarless concrete hollow blocks and mortarless concrete hollow blocks mixed with rice straw ash in terms of density, moisture content, water absorption, and compressive strength. Several tests were conducted to check the difference between the two variables, such as a moisture content test, an absorption test, and a compressive strength test. The results from the above-stated tests showed that there is only an acceptable trial mix proportion from the control group (CHB without RSA) that can be considered to achieve the standard compressive strength. The compressive strength of the CHB with RSA decreases if the percentage of partial replacement of RSA increases. The greater the RSA replacement for cement, the more water it contains; however, the greater the RSA replacement for cement, the less water it can absorb. The tests also revealed that there is a significant difference between the compressive strength of plain mortarless concrete hollow blocks and mortarless concrete hollow blocks with rice straw ash for trial mix B and C since the computed t-value are greater than the critical t — value, rejecting the null hypothesis.
700 1 _aBelano, Joenel S.,
_eauthor
700 1 _aCapacio, Marianne Rose Q.,
_eauthor
700 1 _aOlea, Kaye A.,
_eauthor
700 1 _aVillar, April C.,
_eauthor
720 1 _aBermal, Rowel Domingo N.,
_etechnical adviser
720 1 _aTomenio, Francia H.,
_echair, panelist
720 1 _aTuralde, Henry P.,
_epanelist
720 1 _aGorobao, John Marlo O.,
_epanelist
942 _2ddc
_n0
_cUM
_hAg932m
_iBSCE
_kUTH
_m2022
999 _c27271
_d27271