Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Activation method of coal gasification ash slag, activated coal gasification ash slag and application of activated coal gasification ash slag
The invention provides a coal gasification ash slag activation method, activated coal gasification ash slag and an application of the activated coal gasification ash slag, and belongs to the field of industrial solid waste resource utilization. The coal gasification ash slag is roasted and then subjected to ball milling, on one hand, the activity of the coal gasification ash slag can be improved through roasting, water is removed, and ball milling is facilitated; on the other hand, the specific surface area of the material is increased through grinding, and the volcanic ash reaction is more sufficient; and due to the fact that the ball-milled ash slag easily absorbs moisture in air to form small agglomerated particles, the activity of the ash slag is affected, the small agglomerated particles can be removed through screening, the activated coal gasification ash slag particles can be distributed more evenly, and the activity of the ash slag is ensured. The coal gasification ash slag is activated to replace part of cement, and when the cement replacement rate is 10-30%, the compressive strength of the neat paste is higher than that of neat cement, it is indicated that the activated coal gasification ash slag has remarkable volcanic ash reaction activity and can be used as an admixture material and a cementing material of concrete.
本发明提供了一种煤气化灰渣的活化方法、活化煤气化灰渣和应用，属于工业固废资源化利用领域。本发明将煤气化灰渣进行烘烤然后球磨，一方面通过烘烤可使煤气化灰渣提高活性并除去水分便于球磨，另一方面通过磨细增大了材料的比表面积，使火山灰反应进行的更充分；由于球磨后的灰渣极易吸收空气中的水分形成结团的小颗粒，影响灰渣活性，经过筛分可以去除结团小颗粒，也可使得活化后的煤气化灰渣颗粒分布更加均匀，确保灰渣的活性。本发明煤气化灰渣经活化后代替部分水泥，替代水泥率为10～30％时，其净浆抗压强度高于净水泥的抗压强度，说明活化后的煤气化灰渣具有显著的火山灰反应活性，可作为混凝土的掺加材料和胶凝材料。
Activation method of coal gasification ash slag, activated coal gasification ash slag and application of activated coal gasification ash slag
The invention provides a coal gasification ash slag activation method, activated coal gasification ash slag and an application of the activated coal gasification ash slag, and belongs to the field of industrial solid waste resource utilization. The coal gasification ash slag is roasted and then subjected to ball milling, on one hand, the activity of the coal gasification ash slag can be improved through roasting, water is removed, and ball milling is facilitated; on the other hand, the specific surface area of the material is increased through grinding, and the volcanic ash reaction is more sufficient; and due to the fact that the ball-milled ash slag easily absorbs moisture in air to form small agglomerated particles, the activity of the ash slag is affected, the small agglomerated particles can be removed through screening, the activated coal gasification ash slag particles can be distributed more evenly, and the activity of the ash slag is ensured. The coal gasification ash slag is activated to replace part of cement, and when the cement replacement rate is 10-30%, the compressive strength of the neat paste is higher than that of neat cement, it is indicated that the activated coal gasification ash slag has remarkable volcanic ash reaction activity and can be used as an admixture material and a cementing material of concrete.
本发明提供了一种煤气化灰渣的活化方法、活化煤气化灰渣和应用，属于工业固废资源化利用领域。本发明将煤气化灰渣进行烘烤然后球磨，一方面通过烘烤可使煤气化灰渣提高活性并除去水分便于球磨，另一方面通过磨细增大了材料的比表面积，使火山灰反应进行的更充分；由于球磨后的灰渣极易吸收空气中的水分形成结团的小颗粒，影响灰渣活性，经过筛分可以去除结团小颗粒，也可使得活化后的煤气化灰渣颗粒分布更加均匀，确保灰渣的活性。本发明煤气化灰渣经活化后代替部分水泥，替代水泥率为10～30％时，其净浆抗压强度高于净水泥的抗压强度，说明活化后的煤气化灰渣具有显著的火山灰反应活性，可作为混凝土的掺加材料和胶凝材料。
Activation method of coal gasification ash slag, activated coal gasification ash slag and application of activated coal gasification ash slag
一种煤气化灰渣的活化方法、活化煤气化灰渣和应用
LI HUAWEI (Autor:in) / NIE QINGKE (Autor:in) / WANG GUOHUI (Autor:in) / WANG JUN (Autor:in) / LI YOUDONG (Autor:in) / HAN WENYONG (Autor:in) / CHEN JUNHONG (Autor:in) / WANG QINGJUN (Autor:in) / YANG HAIPENG (Autor:in) / YAN CHUNFU (Autor:in)
26.10.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
Coal gasification slag all-component pervious concrete
| Europäisches Patentamt | 2020
Preparation method of coal gasification slag-lithium slag-steel slag based lightweight concrete
| Europäisches Patentamt | 2024
Acidic composite activated cementing material prepared from coal gasification slag/fly ash
| Europäisches Patentamt | 2024
| Europäisches Patentamt | 2024