HP-2 high permeability modified epoxy chemical grout Factory China

HP-2 high permeability modified epoxy chemical grout

HP-2 high permeability modified epoxy chemical grout is a chemical grouting material with high permeability function used for crack grouting reinforcement and various concrete structures and reinforcement of hydropower dam foundation and curtain with local hydrophilicity and overall drainage, which has unique advantages for water stopping reinforcement of various underground buildings and tunnels.

General Feature Performance

GENERAL

HP-2 high permeability modified epoxy chemical grouting material is a chemical grouting material with high permeability function used for crack grouting reinforcement and various concrete structures and reinforcement of hydropower dam foundation and curtain with local hydrophilicity and overall drainage, which has unique advantages for water stopping reinforcement of various underground buildings and tunnels. With high permeability and excellent mechanical properties, the product is particularly effective in replacing the traditional excavation and backfilling method for in-situ reinforcement treatment of low permeability mud-bearing soft foundation of dams, which can save a lot of investment and shorten the construction period.

FEATURE

◆Excellent infiltration and permeability

Low permeability soft clay bearing stratum, soft rock mass and mudding catation with permeability coefficient K≤10-6 ~ 10-8 cm / s can be poured to strengthen them in situ.

◆ Excellent mechanical properties:

All mechanical performance indexes exceed the requirements of type II indexes of Epoxy Resin Grouting Materials for Concrete Cracks, especially the wet bond strength and tensile strength are much higher than those of similar grouting materials.

◆With local hydrophilicity and overall drainage.

◆With the function of activating non active diluent of pulp.

◆The consolidated body is non-toxic and pollution-free.

PERFORMANCE

Scope of application◆Grouting reinforcement of cracks and defects in various concrete building structures.

Serial number	Bonding strength	Testing items	Performance metrics
			I		II
1		Compressive strength / MPa≥	40	70
2		Tensile shear strength / MPa≥	5.0	8.0
3		Tensile strength / MPa	10	15
4		Dry bonding/MPa≥	3.0	4.0
		Wet bonding^a/ MPa ≥	2.0	2.5
5		Impermeability pressure/MPa≥	1.0	1.2
6		Osmotic pressure ratio/%≥	300	400
7		Initial viscosity mPa·s≤	30	200
^aWet surface bonding strength: it must be measured under wet conditions.
Note: the test age for determining the properties of the cured product is 28 days.

Packaging and storageThe product is packed in iron drums: component A is 9kg / barrel, and component B is 3kg / barrel; Storage period 12 months.◆Normal temperature condition: according to the weight ratio: A ∶ B = 3 ∶ 1