Environment-friendly heat-preserving hollow building block and preparation method thereof
A hollow block and environmental protection technology, applied in the field of building materials and hollow bricklaying, can solve the problems of increasing construction period and cost, harming people's life and property, damage to ground objects, etc., so as to save construction links, enrich output and reduce cost. Effect
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Embodiment 1
[0035] Embodiment 1, block raw material is as follows according to quality ratio:
[0036] 1 part of cement;
[0037] 0.35 parts of fly ash;
[0038] 1.465 parts of pumice coarse aggregate;
[0039] Iron tailings sand and pumice sand mixed fine aggregate 1.366 parts;
[0040] Admixture 0.004 parts;
[0041] 0.45 parts of water.
[0042] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 4:6.
[0043] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 890kg / m 3 , the thermal resistance is 1.21m 2 ·K / W, the average compressive strength is 4.7MPa.
Embodiment 2
[0044] Embodiment 2, block raw material is as follows according to quality ratio:
[0045] 1 part of cement;
[0046] 0.4 parts of fly ash;
[0047] 1.515 parts of pumice coarse aggregate;
[0048] Iron tailings sand and pumice sand mixed fine aggregate 1.537 parts;
[0049] Admixture 0.005 parts;
[0050] 0.35 parts of water.
[0051] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 6:4.
[0052] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 1030kg / m 3 , the thermal resistance is 1.18m 2 • K / W, the average compressive strength is 5.7MPa.
Embodiment 3
[0053] Embodiment 3, block raw material is as follows according to quality ratio:
[0054] 1 part of cement;
[0055] 0.366 parts of fly ash;
[0056] 1.382 parts of pumice coarse aggregate;
[0057] Iron tailings sand and pumice sand mixed fine aggregate 1.496 parts;
[0058] Admixture 0.006 parts;
[0059] 0.4 parts of water.
[0060] Iron tailings sand and pumice sand The mass ratio of iron tailings sand and pumice sand in the fine aggregate is 5:5.
[0061] After testing, the dry density of the new environmentally friendly material insulation hollow block produced by this ratio is 920kg / m 3 , the thermal resistance is 1.09m 2 ·K / W, the average compressive strength is 5.3MPa.
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