Grout injection type waterproof high-viscoelasticity modified asphalt pavement mixture and preparation method thereof
A technology of asphalt mixture and modified asphalt, which is applied in the field of pavement mixture, can solve the problems of large voids, poor performance, and difficult maintenance of asphalt mixture, and achieve smooth and rough pavement surface, excellent high-temperature stability, and anti-fatigue powerful effect
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[0053] Example 1
[0054] Grouting type impervious high viscoelastic modified asphalt paving mixture
[0055] Grouting type impervious high viscoelastic modified asphalt paving mixture,
[0056] Including the parent asphalt mixture, the grout filled into the parent asphalt mixture,
[0057] The matrix asphalt mixture is compacted to form a skeleton void high viscoelastic modified asphalt mixture with a void ratio of 18% to 22%. The composition of the skeleton void high viscoelastic modified asphalt mixture is calculated in parts by weight. :100 parts of aggregate, 4.2~5.2 parts of high viscoelastic modified asphalt, 3.7~4.7 parts of filler;
[0058] The composition of the grouting material by weight is: 100 parts of grouting material and 34-36 parts of water, and the grouting material is a nano-grouting material with high elastic modulus.
[0059] The composition design of the present invention is carried out in two steps: the first step is to design a skeleton void type high viscoelast...
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[0066] Example 2
[0067] On the basis of Example 1: Preferably, the aggregate is made of hard basalt with high strength and good angularity, which is convenient to form a void ratio of 18% to 22%.
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[0068] Example 3
[0069] On the basis of Example 1, the synthetic gradation of the designed aggregate is:
[0070] The aggregate pass rate of 16mm sieve is 100%,
[0071] The aggregate pass rate of 13.2mm sieve is 90%~94%,
[0072] The aggregate pass rate of 9.5mm sieve is 64%~68%,
[0073] The aggregate pass rate of 4.75mm sieve is 13%-22%,
[0074] The aggregate pass rate of 2.36mm sieve is 8% to 13%,
[0075] The aggregate passing rate of 1.18mm sieve is 6%-10%,
[0076] The aggregate pass rate of 0.6mm sieve is 5%-8%,
[0077] The aggregate pass rate of 0.3mm mesh is 4%~7%,
[0078] The aggregate pass rate of 0.15mm sieve is 3%-15%,
[0079] The aggregate pass rate of 0.075mm sieve is 3% to 4%, and the total percentage of aggregates of various particle sizes is 100%;
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