Nano-additive agent modified high-strength wall self-thermal insulation material and preparing method thereof
A nano-additive and self-insulation technology, applied in the field of construction, can solve the problems of low strength, low compressive strength, and inability to self-insulate the wall, and achieve the effect of reducing thermal conductivity and high compressive strength
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Embodiment 1
[0045] Weigh each raw material according to the following parts by mass: 100kg of ordinary Portland cement, 1.1kg of quicklime, 2.0kg of gypsum, 140kg of nano-silicon dioxide, 25kg of fly ash, after mixing evenly, add 0.5kg of water reducing agent, 35kg of water, Stir evenly, use the traditional brick-making process to shape, and naturally maintain it.
[0046] The insulation brick prepared in this example is detected, and its bulk density is 0.95g / cm 3 , the thermal conductivity is 0.14w / m.k, and the compressive strength is 14.03Mpa.
Embodiment 2
[0048] Weigh each raw material according to the following parts by mass: 150kg of aluminate cement, 1.3kg of quicklime, 2.8kg of gypsum, 180kg of nano-alumina, 40kg of blast furnace slag, after mixing evenly, add 0.7kg of water reducing agent, 25kg of water, stir evenly, It is shaped by traditional brick-making techniques and can be obtained through natural maintenance.
[0049] The insulation brick prepared in this example is detected, and its bulk density is 0.98g / cm 3 , the thermal conductivity is 0.16w / m.k, and the compressive strength is 10.28Mpa.
Embodiment 3
[0051] Weigh each raw material by the following parts by mass: 200kg of alkali slag cement, 2kg of quicklime, 1.2kg of gypsum, 180kg of nano silicon dioxide, 50kg of rice husk ash, after mixing evenly, add 0.8kg of waterproofing agent, 35kg of water, stir evenly, The wall is poured on site under the support of the mold, and it can be cured naturally.
[0052] The thermal insulation wall prepared in this embodiment is tested, and its bulk density is 1.07g / cm 3 , the thermal conductivity is 0.19w / m.k, and the compressive strength is 11.81Mpa.
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