JPS58156565A - Pavement material comprising volcanic ash as main component - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paving material mainly composed of volcanic ash, which has high mechanical strength and high abrasion resistance and is used as a paving material for tennis courts, playgrounds, or roads in parks.

Polyurethane resin has traditionally been used as a simple paving material for tennis courts, playgrounds, park roads, etc., but this material is not only expensive, but also has the disadvantages of low mechanical strength and poor abrasion resistance. He was crying.

An object of the present invention is to provide a pavement material containing volcanic ash as a main component, which is not only inexpensive but also has high mechanical strength and excellent wear resistance.

In order to achieve the above object, the present invention comprises a mixture of volcanic ash and a synthetic resin binder, and the mixing ratio of the synthetic resin binder to the volcanic ash is 10 parts by weight of the synthetic resin binder to 10 parts by weight of the volcanic ash. It is characterized by being within the range of 4 to 1.

Hereinafter, the present invention will be specifically explained in detail.

First, volcanic ash is sufficiently dried in a drying kiln at a temperature of 400°C to 600°C. This dried volcanic ash is then mixed with a synthetic resin binder using a stirrer.

This synthetic resin binder is made of various synthetic resins such as polyacrylic resin, epoxy resin, polyester, ethylene vinyl acetate copolymer, polyurethane resin, synthetic rubber latex polymer, vinyl acetate resin, etc., and the mixing ratio is determined by weight ratio. Within the range of 4 to 1 part of the synthetic resin binder per 10 parts of volcanic ash, preferably 3 parts of the synthetic resin binder per 10 parts of volcanic ash.
-1, particularly preferably 2 to 10 parts of volcanic ash. If the mixing ratio of the synthetic resin binder to volcanic ash is greater than 4 to 10 parts of volcanic ash, the resin content will be too large and will not only become expensive, but also the mechanical strength or abrasion resistance will decrease; If it becomes smaller, it will no longer function as a binder, resulting in a decrease in mechanical strength and wear resistance.

Note that various additives such as inorganic pigments may be added to the material of the present invention as required.

In this way, the paving material according to the present invention can be applied to places to be paved with a spreader, such as tennis courts, playgrounds, etc.
It is uniformly spread on roads in parks, etc., and then compacted or pressed using a roller compactor or metal trowel to easily provide pavement, and it has excellent mechanical strength and wear resistance. However, it is extremely inexpensive and is a material that is extremely useful in practice.

Example After the volcanic ash was thoroughly dried in a drying kiln at a temperature of 500 DEG C., 1 part by weight of a polyurethane resin was added to 5 parts by weight of the volcanic ash, and these were thoroughly mixed using a stirrer. Next, the mixture was uniformly spread on a tennis court to a thickness of 5 cm using a spreader, and the mixture was rolled using a roller compactor to pave the tennis court. Paved tennis courts have excellent mechanical strength and abrasion resistance Patent applicant Kawahara Kogyo Co., Ltd.

Claims (1)

[Claims] It is composed of a mixture of volcanic ash and a synthetic resin binder, and the mixing ratio of the synthetic resin binder to volcanic ash is within the range of 4 to 1 part synthetic resin binder to 10 parts volcanic ash by weight.The main component is volcanic ash. paving material.