Gradient permeable concrete product and preparation method thereof
A permeable concrete and gradient-type technology, applied in the field of concrete, can solve problems such as prominent engineering quality warranty problems, large product performance differences, and difficult compaction by vibration, achieving significant economic and environmental benefits, low cost, and effective treatment.
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Embodiment 1
[0043] The embodiment of the present invention provides a kind of preparation method of gradient type permeable concrete product, and preparation method comprises the following steps:
[0044] 1) Weigh 750kg of recycled aggregate, 500kg of lightweight aggregate, 300kg of Portland cement, 60kg of fly ash, 60kg of mineral powder, 12kg of composite admixture, and 110kg of water, and add them to the mixer, stir at high speed evenly, and mix compound;
[0045] Among them, the composite aggregate is composed of recycled aggregate and lightweight aggregate, and the recycled aggregate and lightweight aggregate are mixed at a volume ratio of 1:1 to form a composite aggregate. Recycled aggregate is a single-grain recycled aggregate with a particle size of 5 mm to 10 mm obtained from construction waste concrete; light aggregate is artificial ceramsite with a particle size of 3 to 5 mm. Recycled aggregates and lightweight aggregates are aggregates in a saturated surface-dry state.
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Embodiment 2
[0052] The embodiment of the present invention provides a kind of preparation method of gradient type permeable concrete product, and preparation method comprises the following steps:
[0053] 1) Weigh 750kg of recycled aggregate, 500kg of lightweight aggregate, 300kg of Portland cement, 60kg of fly ash, 60kg of mineral powder, 8.5kg of composite admixture, and 125kg of water, and add them to the mixer, and stir evenly at high speed to obtain admixture;
[0054] Among them, the composite aggregate is composed of recycled aggregate and lightweight aggregate, and the recycled aggregate and lightweight aggregate are mixed at a volume ratio of 1:1 to form a composite aggregate. Recycled aggregate is a single-grain recycled aggregate with a particle size of 5 mm to 10 mm obtained from construction waste concrete; light aggregate is artificial ceramsite with a particle size of 3 to 5 mm. Recycled aggregates and lightweight aggregates are aggregates in a saturated surface-dry state....
Embodiment 3
[0061] The embodiment of the present invention provides a kind of preparation method of gradient type permeable concrete product, and preparation method comprises the following steps:
[0062] 1) Weigh 750kg of recycled aggregate, 500kg of lightweight aggregate, 290kg of Portland cement, 45kg of fly ash, 75kg of mineral powder, 7.5kg of composite admixture, and 130kg of water, and add them to the mixer, and stir evenly at high speed to obtain admixture;
[0063] Among them, the composite aggregate is composed of recycled aggregate and lightweight aggregate, and the recycled aggregate and lightweight aggregate are mixed at a volume ratio of 1:1 to form a composite aggregate. Recycled aggregate is a single-grain recycled aggregate with a particle size of 5 mm to 10 mm obtained from construction waste concrete; light aggregate is artificial ceramsite with a particle size of 3 to 5 mm. Recycled aggregates and lightweight aggregates are aggregates in a saturated surface-dry state....
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