A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses an anti-freezing pottery clay sintered brick and a preparation method thereof, and belongs to the technical field of waste treatment and building materials. The anti-freezing pottery clay sintered brick is prepared from the following raw materials in parts by mass: 30-50 parts of waste bricks and tiles, 40-60 parts of lake sludge, 0.3-0.8 part of sodium silicate, 0.2-0.5 part of sodium tripolyphosphate and 5-10 parts of lake water. The specific preparation method comprises the following steps: stirring the lake sludge into sludge slurry A according to the proportion, crushing the waste bricks and tiles, ball-milling into powder, sieving, adding the poweder into the sludge slurry A, and uniformly stirring to obtain a mixed slurry B; dissolving sodium silicate and sodium tripolyphosphate in lake water; and adding the mixed slurry B, uniformly stirring to obtain a mixed slurry D, aging at room temperature, putting into a brick making mold, carrying out compressionmolding to obtain a raw brick blank, putting the raw brick blank into a kiln, preheating for a period of time, sintering according to a certain temperature system, and carrying out air cooling to roomtemperature along with the kiln to obtain the anti-freezing pottery clay sintered brick. The compressive strength of the anti-freezing pottery clay sintered brick is 24.0-28.3 MPa, the water absorption rate is 6.8-10.2%, the strength loss after 50 times of freezing and thawing is 1.2-1.9%, the water absorption rate after 5 hours of boiling is 15.3-19.2%, and the water retention rate after 5 hoursof boiling is 2.8-3.3%. Waste such as waste bricks and tiles and lake sludge is recycled, environmental pollution is reduced, and the production cost of building materials is reduced.
一种抗冻陶土烧结砖及其制备方法，属于废弃物处理及建筑材料技术领域。用于制备该抗冻陶土烧结砖的原料及其质量份数为：废弃砖瓦30～50份，湖泊淤泥40～60份，硅酸钠0.3～0.8份，三聚磷酸钠0.2～0.5份，湖水5～10份。具体制备方法是按照配比，先将湖泊淤泥搅拌成淤泥浆料A，接着将废弃砖瓦破碎、球磨成粉过筛，加入淤泥泥浆A中搅拌均匀成混合浆料B。将硅酸钠和三聚磷酸钠溶于湖水中，加入混合浆料，搅拌均匀，得到混合浆料D，然后在室温条件下陈化，放入制砖模具中压制成型，得到生砖胚，将生砖胚置于窑炉中，预热一段时间后，按照一定的温度制度进行烧结，接着随炉空冷至室温，得到抗冻陶土烧结砖。该抗冻陶土烧结砖的抗压强度24.0～28.3MPa、吸水率6.8～10.2％、50次冻融强度损失1.2～1.9％、5小时沸煮吸水率15.3～19.2％，实现了废弃砖瓦和湖泊淤泥等废弃物的再利用，减轻了环境污染，降低了建筑材料的生产成本。
The invention discloses an anti-freezing pottery clay sintered brick and a preparation method thereof, and belongs to the technical field of waste treatment and building materials. The anti-freezing pottery clay sintered brick is prepared from the following raw materials in parts by mass: 30-50 parts of waste bricks and tiles, 40-60 parts of lake sludge, 0.3-0.8 part of sodium silicate, 0.2-0.5 part of sodium tripolyphosphate and 5-10 parts of lake water. The specific preparation method comprises the following steps: stirring the lake sludge into sludge slurry A according to the proportion, crushing the waste bricks and tiles, ball-milling into powder, sieving, adding the poweder into the sludge slurry A, and uniformly stirring to obtain a mixed slurry B; dissolving sodium silicate and sodium tripolyphosphate in lake water; and adding the mixed slurry B, uniformly stirring to obtain a mixed slurry D, aging at room temperature, putting into a brick making mold, carrying out compressionmolding to obtain a raw brick blank, putting the raw brick blank into a kiln, preheating for a period of time, sintering according to a certain temperature system, and carrying out air cooling to roomtemperature along with the kiln to obtain the anti-freezing pottery clay sintered brick. The compressive strength of the anti-freezing pottery clay sintered brick is 24.0-28.3 MPa, the water absorption rate is 6.8-10.2%, the strength loss after 50 times of freezing and thawing is 1.2-1.9%, the water absorption rate after 5 hours of boiling is 15.3-19.2%, and the water retention rate after 5 hoursof boiling is 2.8-3.3%. Waste such as waste bricks and tiles and lake sludge is recycled, environmental pollution is reduced, and the production cost of building materials is reduced.
一种抗冻陶土烧结砖及其制备方法，属于废弃物处理及建筑材料技术领域。用于制备该抗冻陶土烧结砖的原料及其质量份数为：废弃砖瓦30～50份，湖泊淤泥40～60份，硅酸钠0.3～0.8份，三聚磷酸钠0.2～0.5份，湖水5～10份。具体制备方法是按照配比，先将湖泊淤泥搅拌成淤泥浆料A，接着将废弃砖瓦破碎、球磨成粉过筛，加入淤泥泥浆A中搅拌均匀成混合浆料B。将硅酸钠和三聚磷酸钠溶于湖水中，加入混合浆料，搅拌均匀，得到混合浆料D，然后在室温条件下陈化，放入制砖模具中压制成型，得到生砖胚，将生砖胚置于窑炉中，预热一段时间后，按照一定的温度制度进行烧结，接着随炉空冷至室温，得到抗冻陶土烧结砖。该抗冻陶土烧结砖的抗压强度24.0～28.3MPa、吸水率6.8～10.2％、50次冻融强度损失1.2～1.9％、5小时沸煮吸水率15.3～19.2％，实现了废弃砖瓦和湖泊淤泥等废弃物的再利用，减轻了环境污染，降低了建筑材料的生产成本。
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