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
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[0095] Resin Preparation Example 1
[0096] Preparation of polyester
[0097] 3500 g of bisphenol A propylene oxide adduct (average number of added moles: 2.2 moles), 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 nitrogen flow. Then, after raising the temperature to 200° C., the reaction was carried out under normal pressure for 1 hour and under a 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. 3300 solids. In addition, the polyester is insoluble in water and exhibits hydrophobicity. The softening point was 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 t...
Example Embodiment
[0098] Resin Preparation Example 2
[0099] 2450 g of bisphenol A propylene oxide adduct (average added moles: 2.2 moles), 950 g of bisphenol A ethylene oxide adduct (average added moles: 2.1 moles), 830 g of terephthalic acid, 670 g of dodecenyl succinic anhydride and 11 g of dibutyltin oxide were reacted at 230° C. for 5 hours under nitrogen flow. Then, after the temperature was lowered to 200° C., 480 g of trimellitic anhydride was added, and the mixture was reacted under normal pressure for 1 hour and under a 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. 3900 solids. In addition, the polyester is insoluble in water and exhibits hydrophobicity.
[0100] (1) Preparation of Aqueous Dispersion (A-1)
[0101] 300 g of polyester and 45 g of diallyl phthalate obtaine...
Example
[0104] Examples 1 to 4, Comparative Examples 1 to 3
[0105] Next, the composition for road paving adjusted according to the mixing ratio shown in Table 1 was supplied to the road paving with the above-mentioned water dispersion (A-1) or water dispersion (A-2) and a silane coupling agent as main components. On the leveled and rolled asphalt mixture layer, use a rubber rake to lay it flat at 25°C. The coating is carried out twice, and the amount of each layer is per 1m 2 Use about 1.5Kg. In addition, on the asphalt mixture layer, a surface laid with a conventionally used room-temperature thin-layer paving material using acrylic latex as a binder (Niyu-Kara-ko-to: Toa Road Industry Co., Ltd.) is also formed. Floor.
[0106] The surface layer formed as described above was evaluated for ease of application, hardening time, appearance after coating, abrasion resistance, slip resistance, and water resistance, and the results are shown in Table 1.
[0107] For the ease of constru...
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