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Improper operation in plastering mortar
Nov 29,2018
In the external wall construction of high-rise buildings, due to improper construction operation, the waterproof mortar layer cracks and cracks, empty drums, falling off and other quality problems can be summarized in the following aspects: 1. Stratified plastering is not carried out according to the regulations. Under normal circumstances, waterproof is required. Plastering should be generally divided into 5 times. The construction unit in order to seize the progress, using a live plastering method, plastering thickness is too large. 2. The base is not well handled, the hole hole of the outer frame tube is not blocked several times from the inside to the outside, the hole of the wall bolt left by the concrete wall column and beam during mold installation is not blocked and compacted, and the steel wire mesh is not set between the wall materials of different materials. There is dust and dirt on the wall surface, and the wall is too dry. Before plastering on the wall surface of some dust and dirt and mortar cleaning is not complete, not clean, not in advance of the grassroots sprinkling wet, the wall is in a dry state. In this condition, the construction plastering layer, because the water in the mortar is quickly absorbed by the base, is bound to form a void crack, mortar strength reduced. The proportion of plastering mortar is not accurate. The mortar mark is too large. Not according to the design and specification requirements of the proportion of construction, plastering mortar label is too large, not only cause unnecessary waste, but also lead to mortar shrinkage cracks.
Four points for attention of dry mortar equipment
Nov 16,2018
To ensure the smooth completion of dry mortar equipment, it is necessary to pay more attention to some details. 1. Under the condition of dry mortar equipment in normal use, need to pay attention to personnel should be regular inspection on equipment operation and maintenance, if found abnormal operating equipment or offset the position such as the operation of the equipment, the need to turn off the power supply in a timely manner, for a full range of inspection and maintenance, after the inspection, use and operation of the right. 2. The mixing degree of dry mortar equipment can be divided into three states: ideal mixing, random mixing and incomplete mixing. 3. In case of sudden power failure, the materials in the dry mortar equipment shall be released first and then the machine shall be started. 4. The mixing degree of materials in the dry mortar equipment depends on the proportion, physical state and characteristics of the materials to be mixed, the type of dry mortar equipment used and the duration of mixing operation and other factors.
Several operations in plastering mortar were improper
Nov 15,2018
In the external wall construction of high-rise buildings, due to improper construction operation, the waterproof mortar layer cracks and cracks, empty drums, falling off and other quality problems can be summarized in the following aspects: 1. Stratified plastering is not carried out according to the regulations. Under normal circumstances, waterproof is required. Plastering should be generally divided into 5 times. The construction unit in order to seize the progress, using a live plastering method, plastering thickness is too large. 2. The base is not well handled, the hole hole of the outer frame tube is not blocked several times from the inside to the outside, the hole of the wall bolt left by the concrete wall column and beam during mold installation is not blocked and compacted, and the steel wire mesh is not set between the wall materials of different materials. There is dust and dirt on the wall surface, and the wall is too dry. Before plastering on the wall surface of some dust and dirt and mortar cleaning is not complete, not clean, not in advance of the grassroots sprinkling wet, the wall is in a dry state. In this condition, the construction plastering layer, because the water in the mortar is quickly absorbed by the base, is bound to form a void crack, mortar strength reduced. The proportion of plastering mortar is not accurate. The mortar mark is too large. Not according to the design and specification requirements of the proportion of construction, plastering mortar label is too large, not only cause unnecessary waste, but also lead to mortar shrinkage cracks. 4 cement mortar after calendering, brush a layer of plain grey, because plain grey and cement mortar shrinkage degree is different, resulting in plain grey surface layer dry crack. 5. The old wall is not treated. The mortar and wall are not well combined. 6 plastering rub obviously convex shuttle and stubble cracking. 7. The crack is caused by poor maintenance after construction, which is due to belated plastering or insufficient curing time, and the surface layer is exposed to air for a long time. Because of the difference in temperature and air - drying caused plastering surface shrinkage turtle crack. Want to know more information can be found on the official website of wuxi jiangjia, the official website //www.seemystuffs.com, specializing in the production of dry mortar production line of the company, wuxi jiangjia is committed to dry mortar equipment one-stop solution, 20 years of experience in the mortar industry, the management of each production of customers is our mission