digital divide network - article database

Construction, block wall body leave some feet and hands road surface of the damage, with irregular block or foreign powder filling, or the use of not supporting slurry repair, will make it easy to produce craze Raymond grinding. Surface not clean up float ash, no full moisture, ash BaoManDu masonry seam cannot meet the design demand, block have serious damage, operating procedures not standard, all can lead to appear empty layer plastering crack a phenomenon.

For aerated concrete buildings, in for exterior wall plastering, layer plastering produce empty drum the cause of the tear, there are certain differences. In aerated concrete wall plastering plane, because aerated concrete thermal insulation effect, indoor temperature and humidity changes are small, so the aerated concrete and external thermal insulation material coefficient of thermal conductivity differences, expansion and contraction caused by difference line between deformation difference are small, namely me tope inside the aerated concrete plastering layer crack empty by coefficient of thermal conductivity differences, strength, expansion and contraction difference line difference in the relatively small. So, in the correct design, the correct choice of materials for the reasonable construction, cause aerated concrete layer plastering me tope inside the empty the main cause of crack, is because of external thermal insulation mortar plastering mortar since shrink, and the water, can't meet aerated concrete requirements of the water absorption.impact crusher

At home, aerated concrete are currently using common cement mortar laying, masonry, QiFeng materials and aerated concrete material thermal conductivity coefficient, strength and shrinkage ratio, etc are not consistent, and operability is bad, QiFeng BaoManDu poor, so easy in QiFeng caused in plastering layer craze. Zhengzhou red star machinery factory specializing in the production of drum dryer, sand the dryer, drum dryer, sand the dryer, stone production line production factory, cement rotary kiln production factory, cement mill production factory, mine machine equipment, the company relies on a strong research and development and production strength, has become one of the few domestic crushing, system of mechanical sand export base. The following is Henan star aerated concrete block in plastering me tope to empty the Lord of the crack of reasons to do simple summary. Laying, want to choose special material to the building of aerated concrete masonry are, grey seam mortar strive to full, embedded with the whole stitch to flexible material. Plasterer, as the gas in concrete, wall plastering empty the cause of the crack differences, so want to select the different material and using different construction scheme in the aerated concrete buildings, in plastering outside on crack. Especially foreign wall plastering, must choose coefficient of thermal conductivity small plastering of reinforced concrete and material aerated concrete for department of homogenizing processing, namely to these easy to crack the weak parts of the added heat preservation, where the two materials by the influence of the temperature change is reduced, so that reinforced concrete and aerated concrete of the difference between the deformation will decrease, appear the odds of cracking are greatly reduced. In addition the company is the production has: cement mill production factory, gravel factory, hammer apparatus manufacturer, compound crusher manufacturers, Henan mandibles crusher, Henan jaw broken, Henan jaw crusher, Henan counterattack torn. The demand of the market is our constant innovation of power and the foundation.