OPTIMALISASI KADAR AIR MORTAR TERHADAP KUAT GESERDINDING
PASANGAN BATAKO(STUDY PENELITIAN)
Oleh: AGUNG SUSWIANTO PUTRO ( 05520029 ) Civil Engineering
Dibuat: 2010-07-28 , dengan 7 file(s).
Keywords: Water Content of the Mixture-Mortar, wall of solid concrete brick, Movement Strength.
ABSTRACT
The buttress load strength of that concrete brick is more influenced by the strength of its mortar, and that mortar strength depends on the water content inside.
This research is done to know about the the relation between water content of that mixture-mortar with the movement strength change of the solid concrete bricks-buttress and the workability. The test material is buttress model of the solid concrete brick with 80 cm length size. The high is like 3 solid concrete brick layers with the horizontal and vertical siar is 2 cm on each independent variable in the form of variations of the water content mixture-mortar between 70% to 115% with a bound variable in the form of shear strength solid concrete brick buttress and the workability.
Based on the result of mortar spreading experiment, a mortar which is very easy to do is the mixture-mortar on the water content between 85%-95%. On the other hand, the strength of the buttress movement on each water-content variations are : 1:4:75% is 9.87 kg/cm2, 1:4:80% is 10.36 kg/cm2, 1:4:85% is 10.91 kg/cm2, 1:4:90% is 13.68 kg/cm2, 1:4:95% 1s 12,19 kg/cm2, 1:4:100% is 9.94 kg/cm2. From that experiment, we know that the optimum value of the most workable mortar is a mixture-mortar on the water content 90% with the movement strength of the brick-buttress is 13.68 kg/cm2.
ABSTRAKSI
Kekuatan beban dinding pasangan batako lebih dipengaruhi oleh kekuatan mortarnya, dan kekuatan mortar tersebut sangat di pengaruhi oleh kadar air yang terkandung di dalamnya. Penelitian ini dilakukan untuk mengetahui komposisi kadar air campuran mortar yang paling optimal, hubungan kadar air campuran mortar dengan perubahan kuat geser dinding pasangan batako pejal dan kelecekan, Benda uji berupa model dinding pasangan batako pejal dengan ukuran panjang 80 cm dan tinggi sebesar 3 lapis batako pejal dengan siar datar dan siar tegak setebal 2 cm pada masing-masing variabel bebas berupa variasi kadar air campuran mortar antara 70% - 115% dengan variabel terikat berupa pengujian kuat geser dinding pasangan batako pejal dan kelecekannya.
