Toughened confining liquid for anti-collision steel barrier of dacromet road

Abstract

The invention belongs to the technical filed of road facilities, and specifically relates to a toughened confining liquid for anti-collision steel barrier of dacromet road. The toughened confining liquid comprises the following raw materials: silane coupling agent, zinc, aluminum, glycol, emulsifier, dispersant, antifoaming agent, hydroxyethyl cellulose, metal reflective powder, and deionized water. The toughened confining liquid prominently enhances the hardness of surface of road anti-collision steel barriers, and largely improves the anticorrosion performance of the steel barriers. Each index is far better than the technological standards of conventional hot-dip galvanizing technology, and the treatment effect of the confining liquid is largely better than that of conventional dacromet technology.

Description

technical field

[0001] The invention belongs to the technical field of road facilities, and in particular relates to a tempering sealing liquid used on anti-collision steel guardrails of Dacromet roads. Background technique

[0002] Traditional guardrail wave beams, columns, anti-blocking blocks, fastening bolts, etc. are treated by hot-dip galvanizing. Because of the thick coating and the problems of surface sagging and roughness, the bolts have a large clearance and high tightening torque requirements, which are easy to affect The integrity and rigidity of the bolted connection reduces the connection performance and increases the difficulty of construction; after the surface of the substrate is pickled, hydrogen embrittlement occurs due to acid corrosion, the corrosion resistance is reduced, and the strength is reduced; the surface of the hot-dip galvanized guardrail is rough and frictional The coefficient is high. When the vehicle hits the guardrail, the greater friction ...

Examples

Embodiment 1

[0025] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume ratio raw materials: KH-550 1.3%, zinc 14%, aluminum 2.5%, ethylene glycol 5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.15% BYK-161 silicone dispersant, 0.1% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0026] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the tempering sealing solution described in Example 1 is increased by 25.9% compared with the existing one.

[0027] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 1, and it was measured that the time for red rust to appear was prolonged by 114.7 hours.

Embodiment 2

[0029] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume ratio raw materials: KH-550 1.9%, zinc 18%, aluminum 6.5%, ethylene glycol 3.5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.45% BYK-161 silicone dispersant, 0.3% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0030] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the toughening sealing solution described in Example 2 is increased by 30% compared with the existing one.

[0031] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 2, and it was measured that the time for red rust to appear was prolonged by 150 hours.

Embodiment 3

[0033] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume proportioned raw materials: KH-550 2.2%, zinc 22%, aluminum 5.5%, ethylene glycol 6.5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.35% BYK-161 silicone dispersant, 0.25% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0034] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the toughening sealing solution described in Example 3 is increased by 28.2% compared with the existing one.

[0035] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 3, and it was measured that the time for red rust to appear was prolonged by 137 hours.

technical field

[0001] The invention belongs to the technical field of road facilities, and in particular relates to a tempering sealing liquid used on anti-collision steel guardrails of Dacromet roads. Background technique

[0002] Traditional guardrail wave beams, columns, anti-blocking blocks, fastening bolts, etc. are treated by hot-dip galvanizing. Because of the thick coating and the problems of surface sagging and roughness, the bolts have a large clearance and high tightening torque requirements, which are easy to affect The integrity and rigidity of the bolted connection reduces the connection performance and increases the difficulty of construction; after the surface of the substrate is pickled, hydrogen embrittlement occurs due to acid corrosion, the corrosion resistance is reduced, and the strength is reduced; the surface of the hot-dip galvanized guardrail is rough and frictional The coefficient is high. When the vehicle hits the guardrail, the greater friction ...

Examples

Embodiment 1

[0025] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume ratio raw materials: KH-550 1.3%, zinc 14%, aluminum 2.5%, ethylene glycol 5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.15% BYK-161 silicone dispersant, 0.1% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0026] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the tempering sealing solution described in Example 1 is increased by 25.9% compared with the existing one.

[0027] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 1, and it was measured that the time for red rust to appear was prolonged by 114.7 hours.

Embodiment 2

[0029] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume ratio raw materials: KH-550 1.9%, zinc 18%, aluminum 6.5%, ethylene glycol 3.5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.45% BYK-161 silicone dispersant, 0.3% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0030] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the toughening sealing solution described in Example 2 is increased by 30% compared with the existing one.

[0031] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 2, and it was measured that the time for red rust to appear was prolonged by 150 hours.

Embodiment 3

[0033] The tempering and sealing liquid used on the anti-collision steel guardrail of Dacromet highway is composed of the following volume proportioned raw materials: KH-550 2.2%, zinc 22%, aluminum 5.5%, ethylene glycol 6.5%, GR-203 oxidation 2.5% polyethylene wax emulsifier, 0.35% BYK-161 silicone dispersant, 0.25% water-based defoamer, 0.1% hydroxyethyl cellulose, 0.55% metal reflective powder, and the balance is deionized water.

[0034] It is measured by the surface Rockwell hardness test: the Rockwell hardness of the Dacromet coating coated with the toughening sealing solution described in Example 3 is increased by 28.2% compared with the existing one.

[0035] The national standard neutral salt spray test was carried out on the Dacromet coating coated with the toughening sealing solution described in Example 3, and it was measured that the time for red rust to appear was prolonged by 137 hours.