00583nam a22001457a 4500003000400000005001700004008004100021040001400062100006600076245012200142260001000264300003100274500010500305504002700410OSt20171010095531.0121005t        xxu||||| |||| 00| 0 eng d  aMMSUcULS  aDumayas, Roderic D., Pumaras, Elwin A., Tolentino, Adrian A.   aThe effect of black sand as a fine aggregate for concretecRoderic D. Dumayas, Elwin A. Pumars, Adrian A. Tolentino    c2008   axiii, [65] leaves c28 cm.  aThesis (BS Civil Engineering) -- Mariano Marcos State University-College of Engineering, Batac City   aBibliography: leaf 30