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A platform for research: civil engineering, architecture and urbanism
The invention discloses a glue used in gravel road paving, and an application method thereof. The glue is composed of a polyurethane material A and a polyurethane material B according to a weight ratio of 5:4. The polyurethane material A comprises, by weight, 70% of trihydroxy polyether 330N, 10% of vinyl-polymer-grafted polyether polyol POP36/30, and 20% of polyether GE-305. The polyurethane material B comprises, by weight, 50-60% of 4,4'-diphenyl methane diisocyanate, and 40-50% of hydrogenated diphenyl methane diisocyanate. The application method comprises the following steps: gravels used for paving are placed in a stirring tank; the glue is prepared, and is well mixed with the gravels; and the mixture is used for paving a road. According to the invention, the glue provided by the invention is used for paving a gravel road, such that the pavement has high porosity, and the pavement can be dried fast when wet. The glue is odorless and dust-free. With the glue, construction is simple and highly efficient. With the glue, the pavement has good shock-absorption performance and better freezing and thawing resistances.
The invention discloses a glue used in gravel road paving, and an application method thereof. The glue is composed of a polyurethane material A and a polyurethane material B according to a weight ratio of 5:4. The polyurethane material A comprises, by weight, 70% of trihydroxy polyether 330N, 10% of vinyl-polymer-grafted polyether polyol POP36/30, and 20% of polyether GE-305. The polyurethane material B comprises, by weight, 50-60% of 4,4'-diphenyl methane diisocyanate, and 40-50% of hydrogenated diphenyl methane diisocyanate. The application method comprises the following steps: gravels used for paving are placed in a stirring tank; the glue is prepared, and is well mixed with the gravels; and the mixture is used for paving a road. According to the invention, the glue provided by the invention is used for paving a gravel road, such that the pavement has high porosity, and the pavement can be dried fast when wet. The glue is odorless and dust-free. With the glue, construction is simple and highly efficient. With the glue, the pavement has good shock-absorption performance and better freezing and thawing resistances.
Glue used in gravel road paving, and application method thereof
LIN DEGAO (author)
2015-10-14
Patent
Electronic Resource
English
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