Rescue polyurethane grout

basic information

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Chemical grout

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Product description

Rescue polyurethane grout

The rescue type polyurethane grouting material DDPU-301 is a rescue type two-component hydrophobic polyurethane grouting material. The material immediately reacts with water, and the volume rapidly expands to form a water-insoluble foam, which can not only be waterproof. Leakage, there is a certain reinforcement and reinforcement effect.

一、characteristic

1. Fast curing, rapid reaction, foaming and solidification after water contact, the reaction time can be adjusted according to the amount of component A, generally can be controlled within tens of seconds to tens of minutes;

2, good hydrophobic properties, high chemical stability;

3, high strength, molding under closed conditions, can achieve 20Mpa compressive strength in a few hours;

4. It has a large penetration radius and solidification volume ratio. It will rapidly react with water and produce a large expansion pressure, which will push the slurry to spread deep into the crack to form a tough consolidated body. Up to 25 times more.

二、Typical performance index

A component physical properties

Serial number	Pilot projects	index
1	Exterior	Brown transparent viscous liquid
2	Density / g / cm3	1.05-1.10
3	Viscosity / mpa.s (25 ° C)	≤60

B component physical properties

Serial number	Pilot projects	index
1	Exterior	Brown transparent viscous liquid
2	Density / g / cm3	1.15-1.25
3	Viscosity / mpa.s (25 ° C)	≤600
4	Nonvolatile content /%	100

Reaction time

Reaction time The reaction time depends not only on the temperature of the rock but also on the temperature of the product. The reaction time under different catalyst dosages is measured under laboratory conditions, and it is best to conduct on-site experiments before grouting.

Reaction time at 10% water and different catalysts at 20 °C

Reaction time at 10% water and different catalysts at 20 °C
A component dosage	5%	10%	15%	20%
Start reverse (s)	15	13	10	10
Reaction junction (s)	90	60	50	50
Foam expansion ratio	approximately30	approximately30	approximately30	approximately30