Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Unfired ceramsite based on ditch bottom mud and preparation method of unfired ceramsite
The invention discloses unfired ceramsite based on ditch bottom mud and a preparation method of the unfired ceramsite. The preparation method comprises the following steps: mixing ditch bottom mud and fly ash to obtain a mixed material A; adding an alkali activator into the mixed material A, and uniformly mixing to obtain a mixed material B; wherein the alkali activator is a mixture of calcium oxide and sodium hydroxide; performing alkali heat activation on the mixed material B to obtain an activated material C; the activated material C is prepared into ceramsite green pellets D; and curing the ceramsite green pellets D at room temperature to obtain the unfired ceramsite. The ditch bottom mud and the fly ash are used as main raw materials for preparing the ceramsite, so that solid wastes such as the ditch bottom mud and the like are effectively recycled, the additional value of the ditch bottom mud is improved, and the production cost of the ceramsite is reduced; the cylinder compressive strength of the unfired ceramsite is 4.32 to 7.43 MPa, and the 1h water absorption rate of the unfired ceramsite is 7.23 to 14.4 percent; the preparation method provided by the invention greatly reduces the energy consumption required by ceramsite production.
本发明公开了一种基于通沟底泥的免烧陶粒及其制备方法。该制备方法，包括以下步骤：将通沟底泥和粉煤灰混合，得到混合物料A；向混合物料A中加入碱活化剂，混合均匀，得到混合物料B；其中，碱活化剂为氧化钙和氢氧化钠的混合物；将混合物料B进行碱热活化，得到活化物料C；将活化物料C制成陶粒生球D；将陶粒生球D室温养护得到免烧陶粒。本发明将通沟底泥、粉煤灰作为制备陶粒的主要原料，使得通沟底泥等固体废弃物得到了有效的资源化利用，提高了通沟底泥的附加值，并且降低了陶粒的生产成本；所得免烧陶粒的筒压强度为4.32～7.43MPa，1h吸水率为7.23％～14.4％；本发明的制备方法大大降低了生产陶粒所需能耗。
Unfired ceramsite based on ditch bottom mud and preparation method of unfired ceramsite
The invention discloses unfired ceramsite based on ditch bottom mud and a preparation method of the unfired ceramsite. The preparation method comprises the following steps: mixing ditch bottom mud and fly ash to obtain a mixed material A; adding an alkali activator into the mixed material A, and uniformly mixing to obtain a mixed material B; wherein the alkali activator is a mixture of calcium oxide and sodium hydroxide; performing alkali heat activation on the mixed material B to obtain an activated material C; the activated material C is prepared into ceramsite green pellets D; and curing the ceramsite green pellets D at room temperature to obtain the unfired ceramsite. The ditch bottom mud and the fly ash are used as main raw materials for preparing the ceramsite, so that solid wastes such as the ditch bottom mud and the like are effectively recycled, the additional value of the ditch bottom mud is improved, and the production cost of the ceramsite is reduced; the cylinder compressive strength of the unfired ceramsite is 4.32 to 7.43 MPa, and the 1h water absorption rate of the unfired ceramsite is 7.23 to 14.4 percent; the preparation method provided by the invention greatly reduces the energy consumption required by ceramsite production.
本发明公开了一种基于通沟底泥的免烧陶粒及其制备方法。该制备方法，包括以下步骤：将通沟底泥和粉煤灰混合，得到混合物料A；向混合物料A中加入碱活化剂，混合均匀，得到混合物料B；其中，碱活化剂为氧化钙和氢氧化钠的混合物；将混合物料B进行碱热活化，得到活化物料C；将活化物料C制成陶粒生球D；将陶粒生球D室温养护得到免烧陶粒。本发明将通沟底泥、粉煤灰作为制备陶粒的主要原料，使得通沟底泥等固体废弃物得到了有效的资源化利用，提高了通沟底泥的附加值，并且降低了陶粒的生产成本；所得免烧陶粒的筒压强度为4.32～7.43MPa，1h吸水率为7.23％～14.4％；本发明的制备方法大大降低了生产陶粒所需能耗。
Unfired ceramsite based on ditch bottom mud and preparation method of unfired ceramsite
一种基于通沟底泥的免烧陶粒及其制备方法
BAO SHENXU (Autor:in) / MA CHI (Autor:in) / ZHANG YIMIN (Autor:in) / XU XIANQING (Autor:in) / LUO YONGPENG (Autor:in)
30.08.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2022