China Cheap Price Alkali Free Liquid Rapid Setting Accelerator For White Portland Cement - GQ-SN Series Accelerator – Gaoqiang

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China Cheap Price Alkali Free Liquid Rapid Setting Accelerator For White Portland Cement - GQ-SN Series Accelerator – Gaoqiang Detail:

Product Overview

GQ-SN03 is our company’s independent research and development of a new alkali free liquid accelerating admixture, this model of products without precipitation, non-toxic, non-corrosion Characteristics, non-flammable, no chlorine ion, harmless to human health, low rebound, no dust, no pollution in the construction process,dyeing can greatly improve the construction environment. Suitable for highway, railway bridge, tunnel, and subway construction wet spray concrete operations. Technical indicators reach JC477, GB/T35159-2017 and other standards.

GQ-SN02 is our company’s independent research and development of liquid alkali accelerator, with less dosage, low alkali content, fast condensation, low rebound, early strength, good adhesion and other characteristics. Suitable for highway, railway bridge, tunnel, and subway construction wet spray concrete operations. Technical indicators reach JC477, GB/T35159-2017 and other standards.

GQ-SN01 is our company’s independent research and development of dry powder accelerating agent, with less dosage, low alkali content, fast condensation, less rebound, early strength, good cohesion and other characteristics. It is suitable for dry spraying concrete in highway, railway bridge, tunnel, subway and other engineering construction industry. Technical indicators reach JC477, GB/T35159-2017 and other standards.

Product Name	Model No.	Recommended Dosage	Packing
Alkali free liquid accelerator	GQ-SN03	6.0～9.0%	200kg/Barrel
Low alkali liquid accelerator	GQ-SN02	4.0～6.0%	200kg/Barrel
Accelerator Powder	GQ-SN01	3.0～5.0%	40kg/Bag

Product Performance

		GQ-SN01	GQ-SN02	GQ-SN03
Setting time	initial set (Min)	≤5	≤5	≤5
Setting time	final set (Min)	≤12	≤12	≤12
1D compressive strength (Mpa)		≥7.0	≥7.0	≥7.0
28D compressive strength (Mpa)		≥70	≥70	≥90
90D compressive strength (Mpa)		≥70	≥70	≥100

Application

1.Suitable for all kinds of shotcrete and mortar. Powder is used for dry shotcrete, liquid is used for wet shotcrete.

2. Suitable for spraying concrete in railway tunnel, highway tunnel and subway project.

3. Suitable for anchor shotcrete in diversion tunnel of hydropower project.

4. Quick-setting concrete and mortar used for rush repair in mining and construction engineering.

Usage & Notice

1. Before using the accelerator, the setting time experiment should be carried out with the cement used in the project to determine the optimal dosage. (test method is: take 400g cement, according to the water-cement ratio 0.4 add water (liquid contains water in accelerating agent), stir evenly after adding the production Product, quickly stir 25-30s to install the mold, measure the condensation time).

2. After mixing the concrete into the jet, add accelerating agent at the jet. Water-binder ratio: mortar 0.35-0.40, concrete 0.38-0.44, the ejecta does not flow, dry spots, uniform color is appropriate.

3. It is required to use no less than 42.5 Portland cement and ordinary Portland cement.

4. The shrinkage of concrete mixed with accelerating agent is greater than that of concrete not mixed with accelerating agent, so curing needs to be started within 4 hours of spraying. Curing time is not less than 1 week.

5. GQ-SN03 alkali free accelerating admixture , there is a little clear liquid on the upper part after a long time, which is a normal phenomenon and needs to be treated before use

It does not affect the normal performance when used after shaking.

Packing & Delivery

1. The powder is packed in plastic woven bag, 40kg/ bag. Liquid in a barrel, 200 ~ 250 kg/ barrel.

2. Powder valid for 6 Months, liquid valid for 12 Months , after the expiration of the test to determine the use.

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