PENGARUH PENAMBAHAN BATU KARANG SEBAGAI SUBSTITUSI AGREGAT HALUS DALAMPEMBUATAN PAVING BLOCK

Edy Gardjito(1*), Agata Iwan Candra(2), Yosef Cahyo(3),

(1) Kadiri University
(2) Kadiri University
(3) Kadiri University
(*) Corresponding Author

Abstract


                                                              Abstract

Material exploitation, especially the use of sand as the main component of concrete, needs to be reduced. The purpose of this research is to find out the value of compressive strength from the addition of rocks to achieve compressive strength according to the standard mix design of paving blocks. This research was conducted at the University's Civil Engineering Laboratory. Attending a trial and error method, the samples tested were cube with a size of 15 x 15 x 15 cm with 3 pieces with the quality of paving planned and K-225 or 18.675 MPa. The method of making specimens includes semi-mechanics using a concrete mixer. Fractional waste The rock is crushed into small pieces and then put in messin abrassion to get smaller pieces of rock and become grains of sand. Test result obtained a percentage of 25% indicating a compressive strength of 22.1 MPa, 20.3 MPa, 19.9MPa, and has an average value of 21.8 MPa. Then the results from the substitutionexperience i increase against compressive strength.

 

Keywords: Coral, Fine Aggregate, Compressive Strength


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References


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DOI: http://dx.doi.org/10.30737/ukarst.v2i1.374

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