CD Skripsi
Simulasi Numerik Sifat Mekanik Bata Ringan Campuran Pofa, Silica Fume Dan Kapur Menggunakan Metode Elemen Hingga
Lightweight brick is a concrete brick that has a density lighter than concrete brick
in general. The efficiency of the use of materials and the quality of lightweight
brick need to be improved in line with the development of science and technology,
such as the use of admixture. The admixtures are used in this research is palm oil
fuel ash (POFA), silica fume and lime (CaCO3). Today, the use of finite element
programs such as LUSAS as an analytical and design tool for structures is
increasing in line with the development of microcomputer technology. The
purpose of this research is to simulate the behavioral analysis of the mechanical
properties of lightweight brick with variations of a mixture of palm oil fuel ash
(POFA), silica fume and lime (CaCO3) using the finite element method in the
LUSAS program. The data is used in the analysis is secondary data taken from
previous research, then it is modeled using LUSAS software for analysis. The
difference in deformation of the results of the analysis using LUSAS and
experimental is less than 10%. The largest deformation occurs at the top of the
lightweight brick model based on the deformation distribution contours of the
three lightweight brick models. The distribution of the greatest stress and strain
contours occurs at the bottom of the lightweight brick model. Loads (6 kN – 60
kN) cause an increase in the light mechanical properties. The biggest deformation
when the maximum load occurs in lightweight silica fume brick is 9,239 mm. The
connection that occurs is the same for the three types of lightweight bricks,
amounting to 1,148 N/mm2. The biggest strain occurred in silica fume lightweight
brick of 0.038 .
Keywords: lightweight brick, LUSAS, Finite element method, Mechanical
properties
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