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Concrete Repairs Material

Expanding Agent

Concrete expansion agent is a low alkali, low dosage with high performance concrete expansive agent, it like UEA expansive agent, both belong to the kind of calcium sulphoaluminate concrete expansion agents,...
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Expansion Agent

Description

Concrete expansion agent is a low alkali, low dosage with high performance concrete expansive agent, it like UEA expansive agent, both belong to the kind of calcium sulphoaluminate concrete expansion agents, but HEA performance is more stable, grain size distribution is more reasonable, the development of expansion performance match well with its cement hydration system after turning. In the concrete, add the HEA expansive agent which dosage is 8 ~ 10% of the cement., it can compensate the shrinkage of concrete, improve the crack resistance of concrete anti-seepage ability, make it become the excellent waterproof impermeability of concrete.


Standards Compliance

It complies with ASTM C 494, Type F specifications.


Main Use & Advantages

All requirements of concrete crack seepage control engineering and component, this product can be used mixed compensation shrinkage concrete, such as: building basements, underground structures, pools, swimming pools, sewage treatment ponds, water tower and storage tank, subway, tunnel, water conservancy and hydropower, Marine engineering, such as waterproof structure, rigid waterproof roof, concrete floor, stadium, radiation protection structures. This product can also be used to compound filled with expansion concrete and mortar, such as: beam-column joint, post-cast seam filling concrete, mechanical equipment, and reinforcing the second infusion, etc. This product can be used in the production of room temperature using self-stressing concrete pressure pipe.


1.When use it, equal amount instead of the amount of the gelled material of concrete, suggest dosage is 8-10%, after configuration, pour the gap and seam, or strengthening concrete, need improve dosage

2.Use this product, the concrete can use the Super-long reinforced concrete seamless design and construction design, can reduce the construction procedure, make construction easier and reduce construction time.


Typical Properties

1, this product is a powder, non-toxic, tasteless, incombustible, does not contain chlorine salt, no reinforcement corrosion.

2, this product in the recommended dosage mixed with concrete, has no obvious influence on the performance of fresh concrete.

3, Dosage with 8% of HEA, limit inflation rate of slurry water in 7 day can reach 0.080%, the indicators meet the request of JC476-2001 "concrete expansion agent”.

4, HEA expansive agent use 8% to 10% of the dosage amount instead of the gelled material in concrete, to establish a micro expansion in concrete, reduce shrinkage of concrete, when reinforcement ratio is 0.2 ~ 1.0%, concrete limit expansion ratio is 0.020 ~ 0.040%, build up 0.2 ~ 0.7 MPa self-stress in concrete, so as to compensate the early-age hydration heat of concrete air-entraining temperature shrinkage and dry shrinkage, increase the permeability of concrete crack resistance.

5, HEA expansion agent has no adverse effects on the strength of concrete, instead to the make the micro structure of concrete is more dense, good for increase concrete strength later

6, adding suitable amount of HEA concrete expansive agent, the impermeability label can be more than the P20.

7, HEA expansion agent can make the concrete cohesive force increased by 20 to 30%. 8, HEA expansion agent can make the concrete sulfate attack resistance and seawater erosion ability resistance improved obviously


Packing ,Storage and Transportation

1.Used in plastic woven bag packaging,50 kg/bag, can also according to customer's need for packaging.

2.Transportation to prevent sharp objects when bruised, avoid break tide, if be affected with damp, product will 3.cannot be used again.

4.If the product is over validity.After test, if everything is ok, then it can be use.

5.This product should be stored in a dry and ventilated environment, validity is six months, open the bag please run out.


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