Cementing material based on continuous elastic-plastic expansion joints of small-span and medium-span bridges and preparation method and application thereof
A technology of small and medium spans and expansion joints, applied in bridge materials, bridges, bridge construction, etc., can solve the problems of deteriorating driving conditions, investing manpower and material resources, reducing the service life of bridges, etc., achieving strong tensile and compressive properties, and preventing rainwater Etc. infiltration, construction and maintenance convenience
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[0057] Example 1
[0058] A continuous elastic-plastic expansion joint cement based on small and medium-span bridges. Its raw material components are base asphalt 70#, styrene-butadiene block polymer (SBS), waste rubber powder, and Vita binder (TOR) and aromatic oil, each component in the raw material is calculated by mass ratio, namely matrix asphalt: styrene-butadiene block polymer: waste rubber powder: Vita binder: aromatic oil is 100:8:15 :2:3. That is, weigh 200g base asphalt, 16g SBS, 30g waste rubber powder, 4gTOR, and 6g aromatic oil.
[0059] The above-mentioned method for preparing continuous elastic-plastic expansion joint cement based on medium and small span bridges,
[0060] It includes the following steps:
[0061] (1) Mix waste rubber powder with TOR, which can be mixed manually or mechanically, and stir evenly to obtain a mixture of waste rubber powder and TOR;
[0062] (2) Put the base asphalt in the container. In order to ensure that the waste rubber powder has r...
Example Embodiment
[0065] Example 2
[0066] A continuous elastic-plastic expansion joint cement based on small and medium-span bridges. Its raw materials are composed of matrix asphalt (70#), styrene-butadiene block polymer (SBS), waste rubber powder, and Vita It is composed of TOR and aromatic oil. The components in the raw material are calculated according to the mass ratio, namely matrix asphalt: styrene-butadiene block polymer: waste rubber powder: Vita binder: aromatic oil is 100:10 :15:2:5. That is, weigh 200g base asphalt, 20g SBS, 30g waste rubber powder, 4gTOR, and 10g aromatic oil.
[0067] The above-mentioned method for preparing continuous elastic-plastic expansion joint cement based on medium and small span bridges,
[0068] It includes the following steps:
[0069] (1) Mix waste rubber powder with TOR, which can be mixed manually or mechanically, and stir evenly to obtain a mixture of waste rubber powder and TOR;
[0070] (2) Put the base asphalt in the container. In order to ensure t...
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