Effect Of Lampung Perlit as Material Aggregate Mortar To Strong Presss

  • Bramantyo Bayu Aji Research Institute for Mineral Technology - Indonesian Institute of Sciences (LIPI)
  • Via Apri Setiani Department of Physics FMIPA University of Lampung
  • Muhammad Amin Research Institute for Mineral Technology - Indonesian Institute of Sciences (LIPI)
  • Syafriadi User Department of Physics FMIPA University of Lampung
Keywords: perlite, mortar, compressive strength

Abstract

This research was conducted to find out the effect of Lampung perlite which used as mortar aggregate material against compressive strength. Perlite used is the mesh size 40. Variations of composition used are 1: 2, 1: 3, 1: 4 and 1: 5 (cement: perlite). Analyzes conducted include water content, specific gravity, mud content, absorption and characterization of X-Ray Fluorescence (XRF). The test is a compressive strength test with a 14 day test life. The result of raw material analysis shows that the perlite meets the standard as a mortar aggregate material and has a high Si content of 57.06%. The best compressive strength is obtained on mortar with a 1: 2 (cement 1: perlite 2) composition of 156.8 kg/cm2. The compressive strength of the mortar decreased with increasing number of perlite in 1: 3, 1: 4 and 1: 5 compositions with a compressive strength value of 84 kg/cm2, 70 kg/cm2 and 33.6 kg/cm2, respectively. This decrease is caused by excessive SiO2 content so that it binds to the free CaO contained in the cement and forms Ca(OH)2. Ca(OH)2 causes the mortar density to decrease and result in the formation of air cavities.

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Cover Jurnal Volume 06 Nomor 01
Published
2018-04-01
How to Cite
Aji, B., Setiani, V., Amin, M., & User, S. (2018). Effect Of Lampung Perlit as Material Aggregate Mortar To Strong Presss. Inovasi Pembangunan : Jurnal Kelitbangan, 6(01), 75-90. Retrieved from https://jurnal.balitbangda.lampungprov.go.id/index.php/jip/article/view/58
Issue
Vol 6 No 01 (2018): April 2018
Section
Articles
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