A kind of photocatalyst-based bridge deck waterproof bonding layer material and preparation method thereof

Abstract

The invention discloses a photocatalyst-based bridge deck waterproof adhesive layer material and a preparation method thereof, which include component A and component B, in terms of weight ratio, component A:component B=1:2.0~1: 2.9; Wherein: the A component includes unsaturated polyester resin, nano-SiO2, photoinitiator and coupling agent; the B component includes pitch and compatibilizer. By weight, in the A component, unsaturated polyester resin: nano-SiO2: photoinitiator: coupling agent = 100:3:4:3; in the B component, asphalt: compatibilizer =100:4. The bridge deck pavement waterproof bonding layer material has good toughness, strong impact resistance, high strength and low brittleness; good bonding, tensile and shear resistance; excellent waterproof performance and good durability; convenient construction and relatively environmental protection Good and less costly.

Description

technical field

[0001] The invention belongs to the field of bridge deck pavement materials, in particular to a photocatalyst-based bridge deck waterproof bonding layer material and a preparation method thereof. Background technique

[0002] After 2000, the economy embarked on a fast track, and the construction of transportation infrastructure, including road construction, developed rapidly. With the large-scale construction of urban roads and highways, a large number of bridges have been opened to traffic. The bridge is an important node that constitutes the transportation network and bears a heavy traffic flow. Any damage to any part of the bridge will affect the normal traffic of vehicles, causing a lot of waste and loss of economic and time costs.

[0003] Bridge deck pavement is an important part of the overall structure of the bridge, which has an important impact on the accessibility and driving performance of the bridge and the durability of the overall structure of...

Examples

preparation example Construction

[0029] A kind of preparation method of the bridge deck waterproof bonding layer material based on photocatalyst of the present invention comprises the following steps:

[0030] Step 1: Incorporate nano-SiO 2 Pretreatment for 40-60min under the conditions of alcohol aqueous solution, 100°C, and pH value of 4; in the alcohol aqueous solution, the volume ratio of ethanol to water is 10:1; the nano-SiO 2 Carry out surface organic modification;

[0031] Step 2: Using the method of "doping first", the nano-SiO after surface organic modification in step 1 2 , Photoinitiator is added to the unsaturated polyester resin, and the speed of 2000r / min is cut in a high-speed shear for 20min to obtain nano-SiO 2 Modified A component;

[0032] Step 3: Add the compatibilizer into the asphalt and stir for 10-20 minutes to disperse it evenly to obtain component B;

[0033] Step 4: Mix the A component obtained in step 2 with the B component obtained in step 3, and shear at a rate of 4000r / min ...

Embodiment 1

[0036] A bridge deck waterproof bonding layer material based on photocatalyst, formulated according to the following ratio:

[0037] According to the ratio of component A: component B = 1:2.0, the composition of component A is type A unsaturated polyester resin: type A nano-SiO 2 : Omnirad 819 photoinitiator: KH-570 silane coupling agent=100:3:4:3, the composition of B component is bitumen:maleic anhydride compatibilizer=100:4.

[0038] A kind of photocatalyst-based bridge deck waterproof bonding layer material is prepared according to the following steps:

[0039] Step 1: Use KH-570 silane coupling agent to A-type nano-SiO 2 Carry out surface organic modification;

[0040]Step 2: Using the method of "doping first", the A-type nano-SiO after the surface organic modification in step 1 2 , Omnirad 819 photoinitiator is added to the A-type unsaturated polyester resin, and the speed of 2000r / min is cut in a high-speed shear for 20min to obtain nano-SiO 2 Modified A component; ...

Embodiment 2

[0047] The difference between embodiment 2 and embodiment 1 is that A component:B component=1:2.3.

technical field

[0001] The invention belongs to the field of bridge deck pavement materials, in particular to a photocatalyst-based bridge deck waterproof bonding layer material and a preparation method thereof. Background technique

[0002] After 2000, the economy embarked on a fast track, and the construction of transportation infrastructure, including road construction, developed rapidly. With the large-scale construction of urban roads and highways, a large number of bridges have been opened to traffic. The bridge is an important node that constitutes the transportation network and bears a heavy traffic flow. Any damage to any part of the bridge will affect the normal traffic of vehicles, causing a lot of waste and loss of economic and time costs.

[0003] Bridge deck pavement is an important part of the overall structure of the bridge, which has an important impact on the accessibility and driving performance of the bridge and the durability of the overall structure of...

Examples

preparation example Construction

[0029] A kind of preparation method of the bridge deck waterproof bonding layer material based on photocatalyst of the present invention comprises the following steps:

[0030] Step 1: Incorporate nano-SiO 2 Pretreatment for 40-60min under the conditions of alcohol aqueous solution, 100°C, and pH value of 4; in the alcohol aqueous solution, the volume ratio of ethanol to water is 10:1; the nano-SiO 2 Carry out surface organic modification;

[0031] Step 2: Using the method of "doping first", the nano-SiO after surface organic modification in step 1 2 , Photoinitiator is added to the unsaturated polyester resin, and the speed of 2000r / min is cut in a high-speed shear for 20min to obtain nano-SiO 2 Modified A component;

[0032] Step 3: Add the compatibilizer into the asphalt and stir for 10-20 minutes to disperse it evenly to obtain component B;

[0033] Step 4: Mix the A component obtained in step 2 with the B component obtained in step 3, and shear at a rate of 4000r / min ...

Embodiment 1

[0036] A bridge deck waterproof bonding layer material based on photocatalyst, formulated according to the following ratio:

[0037] According to the ratio of component A: component B = 1:2.0, the composition of component A is type A unsaturated polyester resin: type A nano-SiO 2 : Omnirad 819 photoinitiator: KH-570 silane coupling agent=100:3:4:3, the composition of B component is bitumen:maleic anhydride compatibilizer=100:4.

[0038] A kind of photocatalyst-based bridge deck waterproof bonding layer material is prepared according to the following steps:

[0039] Step 1: Use KH-570 silane coupling agent to A-type nano-SiO 2 Carry out surface organic modification;

[0040]Step 2: Using the method of "doping first", the A-type nano-SiO after the surface organic modification in step 1 2 , Omnirad 819 photoinitiator is added to the A-type unsaturated polyester resin, and the speed of 2000r / min is cut in a high-speed shear for 20min to obtain nano-SiO 2 Modified A component; ...

Embodiment 2

[0047] The difference between embodiment 2 and embodiment 1 is that A component:B component=1:2.3.

Images