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Spray material for bobsleigh track and preparation method thereof

A technology for sleds and racetracks, applied in the field of spray materials for snowmobile sled racetracks and its preparation, to achieve the effects of reducing pollution, avoiding errors and misoperations, and being easy to fill

Active Publication Date: 2020-11-03
上海宝冶工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A total of 15 tracks of the snowmobile and sled center venue project have been certified by international individual organizations (International Snowmobile and Sled Federation IBSF and International Bobsled Federation FIL). These 15 tracks are all abroad, and no domestic enterprises or units have participated in it. There is no experience to learn from the design and construction of such projects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] First weigh according to the mass percentage: 30% of cementitious material, 50% of natural graded medium sand, 19.3% of stone, 0.3% of polycarboxylate superplasticizer, 0.1% of hemp fiber, 0.1% of air-entraining agent, and defoamer 0.2%, mix the above raw materials in a gravity-free mixing mixer for 8 minutes to obtain the spray dry powder; then weigh 100 parts of the above spray dry powder and 10 parts of water according to the parts by weight, and set aside.

Embodiment 2

[0024] First weigh according to the mass percentage: 34% of cementitious material, 50% of natural graded medium sand, 15.5% of stone, 0.3% of polycarboxylate superplasticizer, 0.05% of hemp fiber, 0.05% of air-entraining agent, defoamer 0.1%, mix the above raw materials in a gravity-free mixing mixer for 8 minutes to obtain the spray dry powder; then weigh 100 parts of the above spray dry powder and 11 parts of water according to the parts by weight, and set aside.

Embodiment 3

[0026] First weigh according to the mass percentage: 39% of cementitious material, 45% of natural graded medium sand, 15.4% of stone, 0.25% of polycarboxylate superplasticizer, 0.1% of hemp fiber, 0.05% of air-entraining agent, defoamer 0.2%, mix the above raw materials in a gravity-free mixing mixer for 12 minutes to obtain spray dry powder; then weigh 100 parts of the above spray dry powder and 12 parts of water according to the parts by weight, mix the spray dry powder and water, stir evenly, and transport to spraying The hardening accelerator is transported to the spray gun of the above-mentioned spraying equipment through wind pressure for uniform spraying. The spraying rate is 100L / min, and the thickness of one-time spraying is 100mm, so as to obtain the spraying material for the snowmobile and sled track. Example 4

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Abstract

The present invention discloses a spray material for snowmobile and sledge race tracks and a preparation method thereof. The spray material comprises the following raw materials in parts by weight: 100 parts of spray dry powder and 10-15 parts of water. The spray dry powder comprises the following raw materials in mass percentages: 30%-45% of cementitious materials, 35%-50% of natural grading medium sand, 15%-20% of stones, 0.1%-0.3% of polycarboxylic acid superplasticizer, 0.02%-0.1% of hemp stem fiber, 0.01%-0.1% of an air entraining agent and 0.01%-0.2% of a de-foaming agent; the above materials are good in workability, stable in performance, resistant to sagging, easy for screeding and easy to spray construction; and the spray material is simple in preparation technology, convenient and highly-efficient in construction, and specifically used for the construction materials for the snowmobile and sledge race tracks.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to spray materials for snowmobile and sled tracks and a preparation method thereof. Background technique [0002] A total of 15 tracks of the snowmobile and sled center venue project have been certified by international individual organizations (International Snowmobile and Sled Federation IBSF and International Toboggan Federation FIL). These 15 tracks are all abroad, and no domestic enterprises or units have participated in it. There is no experience to learn from in the design and construction of such projects. The construction of the track is difficult and requires high precision, which is a difficult point in the construction of venues for the previous Winter Olympics. Among them, the use of sprayed concrete is: the construction method of spraying pouring and spraying materials with a pressure spray gun, which is often used for pouring tunnel linings, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/00155C04B14/06C04B14/02C04B2103/302C04B18/248C04B2103/304C04B2103/50
Inventor 马冰洋张庆雷魏金龙潘产金刘晓黄嘉乐圣长波杨芸朱璇
Owner 上海宝冶工程技术有限公司
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