Open AccessThe effect of adding silica fume for lightweight concrete brick in terms of strength criteria
Author(s) -
Ulfa Jusi,
Harnedi Maizir,
A. R. Fadil
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/737/1/012041
Subject(s) - silica fume , compressive strength , brick , materials science , mortar , cement , composite material , absorption of water
Technological developments in the property sector at this time, especially on the walls are lightweight bricks. To find out the extent of the behavior of the characteristics of lightweight bricks, a study of compressive strength and absorption was carried out using materials such as cement, sand, foam agents and silica fume. Research with the addition of silica fume of 5%, 10% and 15% of the weight of cement at the age of 7 days, 14 days and 28 days based on the standard technology planning module of mortar foam material for road construction. Comparison of light brick free compressive strength from normal light brick to lightweight brick with optimum free compressive strength, namely in light brick the addition of silica fume 5%. The results of free compressive strength at the age of 7 days with the addition of silica fume 5% increased by 41% from normal lightweight brick free compressive strength. At the age of 14 days the compressive strength of light-free bricks with the addition of silica fume 5% increased by 57% from normal light bricks and at 28 days increased 41%. The lowest absorption occurs on the use of silica fume 5% with a value of 36%.