Foam reagent
“KRP” is worked out and produced by VMPAUTO in
two modifications: “KRP-1” -
for soft ground “KRP-2” - for
heavy, water-saturated ground
 Photo 1. Foam
reagent "KRP" in the operational
status Foam reagent
“KRP” is for the improvement of the work conditions of the metro
tunnel complex (MTC): - decreases
collapse and heave in front of the metro tunnel complex
- decreases soil pickup on the
tooling - ties together water excess
- lighten soil transportation
- works as grease, decreasing general
resistance by the digging
Foam
reagent in a quantity of 3 % - 8 % (depending on the type of
soil) is mixed together with water and air. Then it is moved towards the
forepart of the metro tunnel complex. |
Foam reagent “KRP” is
biodegradable product and it corresponds to the 3rd class of the danger
according to the all-Union State Standard 12.1.007-76.
The following certificates
are available upon request: certificate of conformance,
medical-epidemiological certificate and certificate of the market
circulation availability.
Foam reagent “KRP” is already tested in the metro
(Moscow Metro System Act ¹6 from 19.05.06) and it is used by the Moscow
Metro Tunneling. Contracts about supply of the “KRP” to
several Metro Tunneling Organisations are concluded.

Picture 1. Foam application to the
tooling of the metro tonel
gate
Foam
reagents are supplied in the 220 kg plastic euro barrels.
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