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Freeze-thaw resistant pervious concrete and preparation method thereof
The invention relates to the field of pervious concrete, and particularly discloses freeze-thaw-resistant pervious concrete and a preparation method thereof.The freeze-thaw-resistant pervious concrete is prepared from, by weight, 150-200 parts of low-permeability aggregate, 45-60 parts of cement, 10-15 parts of water and 2-5 parts of a water reducing agent; the low-permeability aggregate is a mixed aggregate formed by mixing fine sand and medium sand according to the mass ratio of 1: (2-3), the modulus of the fine sand is 2.7-3.0, and the particle size of the medium sand is 0.25-0.5 mm. The preparation method comprises the following preparation steps: S1, preparing a solid mixture; and S2, mixing and blending. The freeze-thaw-resistant pervious concrete can be used for pervious concrete, the compressive strength loss rate is reduced, and the freeze-thaw resistance of the pervious concrete is further improved.
本申请涉及透水混凝土领域，具体公开了一种抗冻融型透水混凝土及其制备方法，一种抗冻融型透水混凝土包括以下重量份物质：150～200份低渗率骨料集料、45～60份水泥、10～15份水、2～5份减水剂；所述低渗率骨料集料为按细砂和中砂质量比1:2～3混合的混合骨料，所述细砂模量为2.7～3.0，所述中砂粒径为0.25mm～0.5mm。其制备方法的制备步骤包括：S1、固体混合料制备；S2、混合拌和。本申请的抗冻融型透水混凝土可用于透水混凝土，降低了抗压强度损失率，使透水混凝土的抗冻融性能进一步提高。
Freeze-thaw resistant pervious concrete and preparation method thereof
The invention relates to the field of pervious concrete, and particularly discloses freeze-thaw-resistant pervious concrete and a preparation method thereof.The freeze-thaw-resistant pervious concrete is prepared from, by weight, 150-200 parts of low-permeability aggregate, 45-60 parts of cement, 10-15 parts of water and 2-5 parts of a water reducing agent; the low-permeability aggregate is a mixed aggregate formed by mixing fine sand and medium sand according to the mass ratio of 1: (2-3), the modulus of the fine sand is 2.7-3.0, and the particle size of the medium sand is 0.25-0.5 mm. The preparation method comprises the following preparation steps: S1, preparing a solid mixture; and S2, mixing and blending. The freeze-thaw-resistant pervious concrete can be used for pervious concrete, the compressive strength loss rate is reduced, and the freeze-thaw resistance of the pervious concrete is further improved.
本申请涉及透水混凝土领域，具体公开了一种抗冻融型透水混凝土及其制备方法，一种抗冻融型透水混凝土包括以下重量份物质：150～200份低渗率骨料集料、45～60份水泥、10～15份水、2～5份减水剂；所述低渗率骨料集料为按细砂和中砂质量比1:2～3混合的混合骨料，所述细砂模量为2.7～3.0，所述中砂粒径为0.25mm～0.5mm。其制备方法的制备步骤包括：S1、固体混合料制备；S2、混合拌和。本申请的抗冻融型透水混凝土可用于透水混凝土，降低了抗压强度损失率，使透水混凝土的抗冻融性能进一步提高。
Freeze-thaw resistant pervious concrete and preparation method thereof
一种抗冻融型透水混凝土及其制备方法
YOU XIAOWEN (author)
2021-10-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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