anti-cracking waterproof agent for concrete

ST-02M waterproof agent is a kind of concrete improved admixture which can improve the gel density, anti permeability, reduce the early shrinkage of concrete, and effectively control the crack of concrete. This product is a low dosage, high performance and green environmental protection admixture, can reduce capillary hole seam inside of concrete, greatly improve anti permeability label. On the other hand, the concrete has a good pumping performance.

1, the dosage of per cubic meter is 8~12% of concrete gel amount . Note according to the concrete label, adjust the dosage by self

2.The stregth of concrete can increase about 20~35% at every sta after using this products. compressive strength: 7b, 28b strength can increase 10% than basic concrete.

3. When the reinforcement ratio of ST-02M concrete is 0.2-1.0%, Limited expansion ratio is 0.02-0.04%, it has little effect on the strength of concrete;

4. Using this agent to configure waterproof anti permeability and anti crack concrete or mortar, can improve the impermeability grade of more than 3 times; can effectively reduce the number of pores and large pores, so as to achieve the purpose of waterproof; significantly improve concrete strength; 5% of This product can be in place of cement, and compressive strength and impermeability grade unchanged.

Mainly applicable to high strength concrete, pumping concrete, mass concrete, flow pattern concrete, self compacting concrete, hydraulic concrete, underground waterproof concrete which require to enhance the anti cracking, anti - freezen, anti - acid and alkali resistance and durability, and all kinds of Inner structure self waterproofing concrete and waterproof concrete engineering. It can effectively inhibit the substrate leakage, get damp, to prevent cracking of concrete due to seepage caused by rust generated by expansion,It can effectively make up the tiny cracks of the substrate and has the permeability. To maintain the original appearance of the substrate.

Attention :

1,When add this product to concrete, the blending time should be extended about 30-60s.

2,concrete can be mixed in the site or mixing station.  designated nurses charge the Weighing, standard deviation is within 0.5%, this product can be added to the blender with other materials at the same time. When using the compulsory blender to blend, Blending time should be extended 30s than general concrete; When using the Self falling mixer to blend, Blending time should be extended 1min than general concrete. The materials can be used after Stirring to achieve uniform state.

3,transport, and vibration of the Concrete are same with ordinary concrete. But since Self waterproof concrete should pay attention to vibration compaction, so it Can not leak vibration and less vibration. Construction joints can be treated as conventional, but outer joints should be covered with ST-005 mortar with a waterproof tape.

4,Curing tine are not less than 14 days,

Conservation of concrete with this agent is particularly important, the concrete can not be exposed to direct sunlight after pouring, There must be responsible someone for curing of the concrete after hardening.Make concrete often keep moist condition:The time of formwork removal is the same as that of ordinary concrete, and should be extended in winter. After Removing the template, it must use the wet straw covered concrete curing exposure.

5.If If there is a cellular in concrete after removing the template, the concrete can be repaired with ST-02M mortar or fine stone concrete.

ncrete mixed ST-02M can not work in working environment which are  above 80℃ for a long time, when construction temperature below 5 degrees, it should  take heat preservation measures.

1.packing: 50±1kg pp/bag.

2.The product should be stored in a cool, ventilated and cool place to prevent moisture and damage; the layer should not be more than 10 bags. Shelf life of one year

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