A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention discloses a preparation method of a sludge shale brick, and belongs to the technical field of building material preparation. Toughening fibers and silanol in an anti-freezing filler aredehydrated and coupled so that the fiber strength is improved, the interface adhesion between shale brick mortar and the fiber is improved, the fracture toughness of the shale brick is improved, and the compressive strength is improved. When calcination is performed at the temperature of 300 DEG C during the calcination process, the partial minerals are decomposed and recrystallized along with thetemperature rising to form the new phase so as to provide the brick body strength. The red mud in the filler contains metal oxides such as aluminum oxide and calcium oxide, the aluminum oxide existsin the sludge in the form of crystalline fibers, the crystalline fibers are longitudinally oriented in the shale brick, the toughening fibers are intertwined with rock wool fibers in the shale brick in a crossed mode to form a woven mesh, meanwhile, after the toughening fibers and silanol are subjected to dehydration and coupling, hydrophobic siloxane can be generated, the water seepage preventionperformance of the shale brick is improved, introduced tiny bubbles can slow down the destructive effect generated by freezing and thawing, rosin enables the capillary pore wall of the shale brick tobe hydrophobic, and the freezing resistance is improved.
本发明公开了一种污泥页岩砖的制备方法，属于建筑材料制备技术领域。本发明防冻填料中增韧纤维与硅醇脱水偶联后，使纤维强度提高，改善了页岩砖砂浆与纤维之间的界面粘结，提高了页岩砖的断裂韧性，提高了抗压强度，本发明煅烧过程中300℃进行煅烧时，随着温度的升高，部分矿物发生分解、重结晶，形成新相，赋予砖体强度；本发明填料中赤泥含有氧化铝、氧化钙等金属氧化物，氧化铝在污泥中以结晶纤维存在，结晶纤维在页岩砖中纵向取向，与页岩砖中岩棉纤维交叉缠绕，形成编织网，同时增韧纤维与硅醇脱水偶联后，会产生疏水性硅氧烷，提高页岩砖防渗水性能，引入的微小气泡可减缓冻融所产生的破坏作用，松香使页岩砖的毛细孔壁憎水化，提高抗冻性。
The invention discloses a preparation method of a sludge shale brick, and belongs to the technical field of building material preparation. Toughening fibers and silanol in an anti-freezing filler aredehydrated and coupled so that the fiber strength is improved, the interface adhesion between shale brick mortar and the fiber is improved, the fracture toughness of the shale brick is improved, and the compressive strength is improved. When calcination is performed at the temperature of 300 DEG C during the calcination process, the partial minerals are decomposed and recrystallized along with thetemperature rising to form the new phase so as to provide the brick body strength. The red mud in the filler contains metal oxides such as aluminum oxide and calcium oxide, the aluminum oxide existsin the sludge in the form of crystalline fibers, the crystalline fibers are longitudinally oriented in the shale brick, the toughening fibers are intertwined with rock wool fibers in the shale brick in a crossed mode to form a woven mesh, meanwhile, after the toughening fibers and silanol are subjected to dehydration and coupling, hydrophobic siloxane can be generated, the water seepage preventionperformance of the shale brick is improved, introduced tiny bubbles can slow down the destructive effect generated by freezing and thawing, rosin enables the capillary pore wall of the shale brick tobe hydrophobic, and the freezing resistance is improved.
本发明公开了一种污泥页岩砖的制备方法，属于建筑材料制备技术领域。本发明防冻填料中增韧纤维与硅醇脱水偶联后，使纤维强度提高，改善了页岩砖砂浆与纤维之间的界面粘结，提高了页岩砖的断裂韧性，提高了抗压强度，本发明煅烧过程中300℃进行煅烧时，随着温度的升高，部分矿物发生分解、重结晶，形成新相，赋予砖体强度；本发明填料中赤泥含有氧化铝、氧化钙等金属氧化物，氧化铝在污泥中以结晶纤维存在，结晶纤维在页岩砖中纵向取向，与页岩砖中岩棉纤维交叉缠绕，形成编织网，同时增韧纤维与硅醇脱水偶联后，会产生疏水性硅氧烷，提高页岩砖防渗水性能，引入的微小气泡可减缓冻融所产生的破坏作用，松香使页岩砖的毛细孔壁憎水化，提高抗冻性。
Preparation method of sludge shale brick
一种污泥页岩砖的制备方法
ZHANG XILI (author)
2020-07-17
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Experimental Analysis on Preparation of Fired Brick with Shale and Sewage Sludge
| British Library Online Contents | 2012
Impervious municipal sludge-sintered shale brick and production method thereof
| European Patent Office | 2015