Lightweight high-strength concrete member and preparation method thereof
A technology for concrete and components, applied in the field of concrete, can solve problems such as reducing the impregnation effect, and achieve the effect of reducing weight and improving strength
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preparation example Construction
[0030] figure 1 A schematic flow chart of the method for preparing a lightweight and high-strength concrete member of the present invention is shown. The method generally includes steps S1-S4.
[0031] In step S1, the concrete pouring mold is supported, and the conductive wire is laid at the center of the mold, preferably so that the conductive wire is finally located at the center of the concrete member formed by pouring. The conductive wire is preferably a copper conductive wire.
[0032] In step S2, the concrete material is used for pouring and curing for a predetermined time to form a concrete member. Preferably, the curing period lasts 28 days.
[0033] In step S3, the concrete member formed in step S2 is fully contacted with the polymer solution, and subjected to electrophoretic impregnation. Conductive wires are buried in the concrete member. After the concrete member is in full contact with the polymer solution, the conductive wire embedded in the concrete member i...
Embodiment 1
[0049] The mixing ratio of the materials used in pouring to form concrete components in this example is: 1050 parts of continuous gradation with a particle size of 1 mm to 5 mm, a cylinder compressive strength of 8.1 MPa, and a bulk density of 870 kg / m 3 Shale ceramsite was used as coarse bone particles; 750 parts of continuously graded quartz sand with a particle size of 0.01 mm to 1.25 mm was used as fine bone particles; 600 parts of ordinary Portland cement with a strength grade of 52.5 was used as cementitious material; 100 parts of fine The degree is 20000 mesh, SiO 2 Silica fume with a content of 90% is used as an active admixture; 140 parts of water; 8 parts of polycarboxylate superplasticizer.
[0050] The polyacetal resin solution was used as the polymer solution for electrophoretic impregnation.
[0051] Put ordinary Portland cement, silica fume and quartz sand into the mixer and stir for 1 to 2 minutes, then add water to form a mortar. Soak the shale ceramsite in ...
Embodiment 2
[0059] The mixing ratio of the materials used for pouring to form concrete components in this example is: 1000 parts of continuous gradation with a particle size of 1 mm to 10 mm, a cylinder compressive strength of 4.0 MPa, and a bulk density of 370 kg / m 3 850 parts of continuously graded quartz sand with a particle size of 0.01 mm to 1.25 mm are used as fine bone particles; 650 parts of ordinary Portland cement with a strength grade of 52.5 are used as cementitious materials; 150 parts of fineness 2000 mesh ultra-fine mineral powder with an activity index of 105 is used as an active admixture; 160 parts of water; 16 parts of fatty acid is a high-efficiency water reducer.
[0060] The epoxy resin solution was used as the polymer solution for electrophoretic impregnation.
[0061] Put ordinary portland cement, superfine mineral powder and quartz sand in the above formula into a mixer and stir for 1 to 2 minutes, add water and mix well to form a mortar. Soak clay ceramsite in w...
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Abstract
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