Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of steam-curing-free mineral admixture for tubular pile
The invention discloses a preparation method of a steam-curing-free mineral admixture for a pipe pile, which comprises the following steps: preparing a powder raw material, an active activator and a grinding-aid additive according to a certain mass ratio, feeding into a grinding device from a grinding head at a certain grinding feeding rate, enabling the grinding discharging rate to be the same as the grinding feeding rate, discharging from a grinding tail to obtain a ground powder material, and drying to obtain the steam-curing-free mineral admixture for the pipe pile. And preparing the milled powder material and a workability improving additive according to a certain mass ratio, feeding into a mixing device at a certain speed, and mixing to obtain the mineral admixture for the steam-curing-free pipe pile. The powder raw material with volcanic ash activity is secondarily processed into the superfine mineral admixture, so that the volcanic ash reaction activity of the powder raw material is improved; furthermore, under the action of an active exciting agent and a grinding aid additive, the pozzolanic reaction activity of the powder raw material is improved, the hydration reaction process of cement and other cementing materials is promoted, and then the steam-curing-free tubular pile concrete production process under the normal-temperature curing working condition is achieved.
本发明公开了一种免蒸养的管桩用矿物掺合料的制备方法，将粉体原材料、活性激发剂、助磨添加剂按照一定质量比进行配制，从磨头以一定进磨速率进入粉磨装置，出磨速率与进磨速率相同，从磨尾出料得到出磨粉体物料，将出磨粉体物料与和易性改善添加剂按照一定质量比配制，以一定速率进入混合装置，混合后得到免蒸养管桩用矿物掺合料。本发明使用具有火山灰活性的粉体原材料二次加工成超细矿物掺合料，提升粉体原材料的火山灰反应活性；进一步地，在活性激发剂和助磨添加剂的作用下，提升粉体原材料的火山灰反应活性、促进水泥等胶凝材料的水化反应进程，进而实现常温养护工况下的免蒸汽养护的管桩混凝土生产工艺。
Preparation method of steam-curing-free mineral admixture for tubular pile
The invention discloses a preparation method of a steam-curing-free mineral admixture for a pipe pile, which comprises the following steps: preparing a powder raw material, an active activator and a grinding-aid additive according to a certain mass ratio, feeding into a grinding device from a grinding head at a certain grinding feeding rate, enabling the grinding discharging rate to be the same as the grinding feeding rate, discharging from a grinding tail to obtain a ground powder material, and drying to obtain the steam-curing-free mineral admixture for the pipe pile. And preparing the milled powder material and a workability improving additive according to a certain mass ratio, feeding into a mixing device at a certain speed, and mixing to obtain the mineral admixture for the steam-curing-free pipe pile. The powder raw material with volcanic ash activity is secondarily processed into the superfine mineral admixture, so that the volcanic ash reaction activity of the powder raw material is improved; furthermore, under the action of an active exciting agent and a grinding aid additive, the pozzolanic reaction activity of the powder raw material is improved, the hydration reaction process of cement and other cementing materials is promoted, and then the steam-curing-free tubular pile concrete production process under the normal-temperature curing working condition is achieved.
本发明公开了一种免蒸养的管桩用矿物掺合料的制备方法，将粉体原材料、活性激发剂、助磨添加剂按照一定质量比进行配制，从磨头以一定进磨速率进入粉磨装置，出磨速率与进磨速率相同，从磨尾出料得到出磨粉体物料，将出磨粉体物料与和易性改善添加剂按照一定质量比配制，以一定速率进入混合装置，混合后得到免蒸养管桩用矿物掺合料。本发明使用具有火山灰活性的粉体原材料二次加工成超细矿物掺合料，提升粉体原材料的火山灰反应活性；进一步地，在活性激发剂和助磨添加剂的作用下，提升粉体原材料的火山灰反应活性、促进水泥等胶凝材料的水化反应进程，进而实现常温养护工况下的免蒸汽养护的管桩混凝土生产工艺。
Preparation method of steam-curing-free mineral admixture for tubular pile
一种免蒸养的管桩用矿物掺合料的制备方法
FAN SHIMIN (Autor:in) / MOU ZHONGJIANG (Autor:in) / LIU JIANG (Autor:in)
06.01.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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