Shijiazhuang Fluffier International Trading Co., Ltd.
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Concrete expansion additive, factory direct supplier, great result

Product Detail

Product Tags

Overview
Quick Details
Warranty:
1 Year
After-sale Service:
Online technical support, NONE
Project Solution Capability:
total solution for projects, Others
Application:
Hotel
Design Style:
Contemporary
Place of Origin:
hebei
Brand Name:
huahaifi
Product name:
concrete expansion additives
Appearance:
white powder
Certificated:
ISO
Usage:
Construction Material
Packing:
Bag
Color:
White
Grade:
Construction Grade
Product Display
H8b171dfd613448

H8b171dfd613448

H8b171dfd613448

H8b171dfd613448

Products Description
PN-4 concrete expansion agent is a U-type expansion agent, which can change the internal structure of concrete, to improve the crack resistance and impermebility of concrete, so as to reduce the shirnkage during concrete hardening process. The shirnkage compensating concrete can be used in different construction seasons with a good work performance, stable growth of long-term strength, but without corrosion to steel bars, which can prevent alkali aggregate reaction so as to improve the durability of concrete.


The admixture amount of RN-4 is generally 8-10% based on the internal blending (replacement of cementitious material ratio). It is suitable for various portland cements and can be used in combination with other admixtures, but it must be determinded after formulation. The mixture time of RN-4 concrete should be extended by 30-60 seconds, with the dosage error is less than 0.5%. After 12-24 hours of hardening for RN-4 concrete, watering and curing shall be carried out for no less than 14 days. It is not allowed to be used in the working environment with a temperature of more than 80 degree. If the construction temperature is lower than 5 degree, insulation measures should be taken.

Main Technical Performance:
Under the specific dosage, the comprehesive strength and flexural strength are 10-30% higher than that of the reference concrete at 3 days, 7 days, and 28 days, and the late strength continous to increase. After incorporating RN-4 composite expansion agent, the impermeability index of concrete is 1-2 times of the reference concrete. After the impermeability index S more than 30 is incorporated into the RN-4 composite expansion agent, the concrete will have a good working performance and a small slump loss.

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