Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of coal gangue aggregate for strengthening undisturbed coal gangue-set cement interface
The invention discloses a preparation method of coal gangue aggregate for strengthening an undisturbed coal gangue-set cement interface, relates to a coal gangue-set cement interface strengthening method, and aims to solve the technical problems of high cost, large cement consumption, high shrinkage cracking risk and long-term durability degradation in the existing coal gangue-set cement interface modification method. The method comprises the following steps: cleaning the undisturbed coal gangue aggregate, putting the undisturbed coal gangue aggregate into a calcium hydroxide and magnesium hydroxide composite solution for vacuum impregnation, carrying out carbonization treatment, putting the carbonized material into emulsion for soaking, and drying to obtain the undisturbed coal gangue-set cement interface reinforced coal gangue aggregate. Compared with untreated aggregate, the concrete prepared from the modified aggregate has the advantages that the electric flux is reduced by 23%-30%, the width of an interface transition region is reduced by 44.2%-54.2%, and the strength, impermeability and long-term durability of a concrete interface are improved.
一种强化原状煤矸石‑水泥石界面的煤矸石骨料的制备方法，它涉及煤矸石‑水泥石界面强化方法，它是要解决现有的煤矸石‑水泥石界面改性方法存在的成本高、水泥用量大、收缩开裂风险高和长期耐久性劣化的技术问题。本方法：将原状煤矸石骨料洗净后，置入氢氧化钙和氢氧化镁复合溶液中进行真空浸渍，再碳化处理，再放入乳化液中浸泡、烘干，得到强化原状煤矸石‑水泥石界面的煤矸石骨料。利用该改性骨料制备的混凝土，与未处理的骨料相比，电通量降低了23%~30%，界面过渡区宽度降低了44.2%~54.2%，提高了混凝土界面的强度及抗渗性和长期耐久性。
Preparation method of coal gangue aggregate for strengthening undisturbed coal gangue-set cement interface
The invention discloses a preparation method of coal gangue aggregate for strengthening an undisturbed coal gangue-set cement interface, relates to a coal gangue-set cement interface strengthening method, and aims to solve the technical problems of high cost, large cement consumption, high shrinkage cracking risk and long-term durability degradation in the existing coal gangue-set cement interface modification method. The method comprises the following steps: cleaning the undisturbed coal gangue aggregate, putting the undisturbed coal gangue aggregate into a calcium hydroxide and magnesium hydroxide composite solution for vacuum impregnation, carrying out carbonization treatment, putting the carbonized material into emulsion for soaking, and drying to obtain the undisturbed coal gangue-set cement interface reinforced coal gangue aggregate. Compared with untreated aggregate, the concrete prepared from the modified aggregate has the advantages that the electric flux is reduced by 23%-30%, the width of an interface transition region is reduced by 44.2%-54.2%, and the strength, impermeability and long-term durability of a concrete interface are improved.
一种强化原状煤矸石‑水泥石界面的煤矸石骨料的制备方法，它涉及煤矸石‑水泥石界面强化方法，它是要解决现有的煤矸石‑水泥石界面改性方法存在的成本高、水泥用量大、收缩开裂风险高和长期耐久性劣化的技术问题。本方法：将原状煤矸石骨料洗净后，置入氢氧化钙和氢氧化镁复合溶液中进行真空浸渍，再碳化处理，再放入乳化液中浸泡、烘干，得到强化原状煤矸石‑水泥石界面的煤矸石骨料。利用该改性骨料制备的混凝土，与未处理的骨料相比，电通量降低了23%~30%，界面过渡区宽度降低了44.2%~54.2%，提高了混凝土界面的强度及抗渗性和长期耐久性。
Preparation method of coal gangue aggregate for strengthening undisturbed coal gangue-set cement interface
一种强化原状煤矸石-水泥石界面的煤矸石骨料的制备方法
GAO XIAOJIAN (Autor:in) / HU LINGXUAN (Autor:in) / SU ANSHUANG (Autor:in) / CHEN TIEFENG (Autor:in)
26.12.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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