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HPMC Cellulose Solves the Problem of Easy to Ignore in Construction of Waterproof Mortar

2018-12-13 19:43:58  View:
In many high-rise building exterior wall construction, often waterproof mortar layer cracks, cracks, hollowing, shedding and other quality problems caused by improper operation. Among many problems, leakage of exterior wall is one of the most urgent problems in building construction. A variety of new wall materials (such as concrete hollow brick, aerated concrete block) is widely used, but new wall materials common anti permeability ability is poor, so we must take effective measures to prevent the building wall leakage.
 

The following points are easy to overlook in the construction of waterproof mortar:


1. Delamination scraping not as required
Under normal circumstances, in accordance with the requirements of waterproof mortar construction, scraping generally should be carried out 2~3 times, and construction units in order to seize the progress, often carry ou one time of the construction methods.


2,The base roots are not processed as required
The outer frame tube holes, holes eye from the inside to the outside several times no blocked; wall surface dust and dirt; the wall is too dry, wet splitting is not sufficient. Under such conditions, the construction of scraping coating, because the moisture in the mortar will soon be absorbed by the base, it is bound to affect the strength of waterproof mortar.


3, Waterproof mortar ratio is not correct
The construction of mortar is not in accordance with the design and specifications requirements, waterproof mortar can not give full play to the performance, there will problems in water, crack and other aspects.


4, Mortar become harden, add water to use
Waterproof mortar shall be used in 45 minutes, and the mortar shall not be added in water to be used again after hardening.


5, Poor maintenance after construction
Waterproof mortar will need to be maintained after hardening. After the construction, the long exposure to the air is affected by the temperature difference and air drying, which causes cracks in the mortar surface
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