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Composition for paving road and paving body using the same composition

A composition and road technology, which can be applied to coagulating pavements, roads, roads and other directions paved on site, can solve the problems of odor, slow strength, poor construction efficiency, etc., to prevent slippage, improve characteristics, and excellent adhesion. Effect

Inactive Publication Date: 2005-04-27
TOA ROAD CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Epoxy resin, MMA resin, etc. can form pavements with high aggregate retention and sufficient strength, but they tend to emit solvents during hardening and cause odor
In addition, when using a water-based dispersion of acrylic resin, it can be laid at normal temperature, and since it is water-based, it will not generate harmful substances, but it exhibits strength slowly, making construction efficiency worse
Especially at low temperature in winter, this shortcoming is more significant

Method used

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  • Composition for paving road and paving body using the same composition
  • Composition for paving road and paving body using the same composition
  • Composition for paving road and paving body using the same composition

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0096] Preparation of polyester

[0097] 3500 g of bisphenol A propylene oxide adduct (average added mole number: 2.2 mol), 1160 g of fumaric acid, 0.3 g of hydroquinone, and 8.4 g of dibutyltin oxide were reacted at 160° C. for 4 hours under a nitrogen stream. Then, after raising the temperature to 200° C., the reaction was carried out under normal pressure for 1 hour and under reduced pressure of 9.33 kPa for 1 hour. The obtained polyester had an acid value (AV) of 23.0 mgKOH / g, a hydroxyl value (OHV) of 33.7 mgKOH / g, a softening point (Tm) of 95.1°C, a glass transition point (Tg) of 61.3°C, and a number average molecular weight of 3300 solid. In addition, this polyester is insoluble in water and exhibits hydrophobicity. The softening point is measured using a Koka-type flow rate tester (manufactured by Shimadzu Corporation) under the conditions of a load of 20Kgf (196N), an orifice diameter of 10mm, an orifice length of 1mm, and a temperature rise of 3°C / min. temperature...

preparation example 2

[0099] 2450g bisphenol A propylene oxide adduct (average added moles: 2.2 moles), 950g bisphenol A ethylene oxide adducts (average added moles: 2.1 moles), 830g terephthalic acid, 670 g of dodecenyl succinic anhydride and 11 g of dibutyltin oxide were reacted at 230° C. for 5 hours under a nitrogen stream. Then, after lowering the temperature to 200° C., 480 g of trimellitic anhydride was added, and the reaction was carried out under normal pressure for 1 hour and under reduced pressure of 9.33 kPa for 1 hour. The obtained polyester had an acid value (AV) of 31.7 mgKOH / g, a hydroxyl value (OHV) of 32.5 mgKOH / g, a softening point (Tm) of 104.3°C, a glass transition point (Tg) of 64.0°C, and a number average molecular weight of 3900 solid. In addition, this polyester is insoluble in water and exhibits hydrophobicity.

[0100] (1) Preparation of water dispersion (A-1)

[0101] 300 g of polyester obtained in Resin Preparation Example 1 and 45 g of diallyl phthalate were dissolv...

Embodiment 1～4、 comparative example 1～3

[0105] Next, with the above-mentioned water dispersion (A-1) or water dispersion (A-2) and silane coupling agent as main components, the road paving composition adjusted according to the proportion shown in Table 1 is supplied to the laying On the flattened and rolled asphalt mixture layer, use a rubber rake to lay it flat at 25°C. Coating is carried out twice, and the dosage of each layer is per 1m 2 Use about 1.5Kg. In addition, on the top of the asphalt mixture layer, a surface laid by the currently used room temperature thin layer paving material (ニユ-カラ-コ-ト: manufactured by Toa Road Industry Co., Ltd.) using acrylic latex as a binder is also formed. Floor.

[0106] Ease of construction, hardening time, appearance after coating, abrasion resistance, slip resistance, and water resistance of the surface layer formed above were evaluated, and the results are shown in Table 1.

[0107] For the ease of construction, the case of easy laying and leveling is marked as ○, and the...

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Abstract

This invention provides a road paving composition capable of carrying out construction work at a normal temperature, early revealing sufficient strength after the construction work and efficiently forming or repairing a paving body. The composition containing a water dispersing body neutralizing resin (A) of 3 to 100 K0Hmg / g of acid value with a basic compound and a silane coupling agent having alkoxyl group of carbon numbers 1 to 5 and an amino group is used for forming a binder of aggregate in a pavement or a surface layer of the paving body. Plasticity is given by adding a thermoplastic resin (B) having glass transition temperature not higher than 0[deg.]C, for example, a styrene-butadience latex to the composition to increase abrasion and wear resistance. The road paving composition mixed with the aggregate is levelly paved on the roadbed or the paving surface, alternatively it is coated or spread on the surface of the paving to form a top-coat layer.

Description

technical field [0001] The invention relates to a road paving composition and a paving body using the composition. The composition can be used to form the surface layer of the road paving, or to repair or reinforce the paving body to improve the aggregate strength of the paving body. Adhesion. Background technique [0002] In the situation where diversification of transportation means is prevailing and coordination of environmental issues is required, the maintenance of sidewalks and bicycle lanes is also developing, and colored pavement is often used in their paving. Colored paving is also suitable for clearly distinguishing pedestrian and cycle paths from motorways while considering the landscape. In addition, on motorways, colored paving using resin is often used to identify bus lanes and prevent skidding in temporary parking areas such as intersections. [0003] Such colored paving is generally performed by using a resin to form a surface layer containing a pigment, an...

Claims

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Application Information

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IPC IPC(8): E01C7/35C08K5/544C08L67/00C08L101/12E01C7/30E01C11/24
Inventor 河边邦康福山幸弘
Owner TOA ROAD CORP
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