A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Full-coal-gangue high-performance concrete and preparation method thereof
The invention relates to the technical field of concrete preparation, and discloses full-coal-gangue high-performance concrete and a preparation method of the full-coal-gangue high-performance concrete. A geopolymer admixture; and coal gangue. According to the full-coal-gangue high-performance concrete and the preparation method thereof, after the undisturbed coal gangue is activated, the active ingredients of aluminum oxide and calcium oxide on the surface of the red coal gangue can form hydration reaction with the cement, the mineral powder and the composite powdery reinforcing agent, and the interface bonding strength is far higher than that of the undisturbed coal gangue or the washed coal gangue, so that the comprehensive performance of the concrete is improved. On the basis of replacing a natural gravel material with 100% of coal gangue, coal gangue aggregate concrete and a composite powdery reinforcing agent with medium and high strength of C50 and above can be realized, coal series kaolin has good plasticity, high cohesiveness, good fire resistance and other physicochemical properties after being calcined, particles are close to the nanometer level after the coal series kaolin is mixed with mineral powder and the like, and the coal series kaolin has good comprehensive performance. Volcanic ash reaction and polymerization reaction are more sufficient, so that the strength of the coal gangue aggregate concrete is improved.
本发明涉及混凝土制备技术领域，且公开了一种全煤矸石高性能混凝土及其制备方法，包括以下物料：复合粉状增强剂；地质聚合物掺合料；煤矸石。该全煤矸石高性能混凝土及其制备方法，原状煤矸石经活化后，红煤矸石表面的活性成分氧化铝、氧化钙可与水泥、矿粉、复合粉状增强剂形成水化反应，界面结合强度远高于原状煤矸石或水洗煤矸石，因此，在实现100％煤矸石替代天然砂石材料的基础上，还可实现C50及以上中高强度的煤矸石骨料混凝土，复合粉状增强剂，其中的煤系高岭土煅烧后具有良好的可塑性、很高的粘结性、较好的耐火性等理化性质，与矿粉等混合后颗粒接近纳米级别，火山灰反应、聚合反应更加充分，使得煤矸石骨料混凝土强度增高。
Full-coal-gangue high-performance concrete and preparation method thereof
The invention relates to the technical field of concrete preparation, and discloses full-coal-gangue high-performance concrete and a preparation method of the full-coal-gangue high-performance concrete. A geopolymer admixture; and coal gangue. According to the full-coal-gangue high-performance concrete and the preparation method thereof, after the undisturbed coal gangue is activated, the active ingredients of aluminum oxide and calcium oxide on the surface of the red coal gangue can form hydration reaction with the cement, the mineral powder and the composite powdery reinforcing agent, and the interface bonding strength is far higher than that of the undisturbed coal gangue or the washed coal gangue, so that the comprehensive performance of the concrete is improved. On the basis of replacing a natural gravel material with 100% of coal gangue, coal gangue aggregate concrete and a composite powdery reinforcing agent with medium and high strength of C50 and above can be realized, coal series kaolin has good plasticity, high cohesiveness, good fire resistance and other physicochemical properties after being calcined, particles are close to the nanometer level after the coal series kaolin is mixed with mineral powder and the like, and the coal series kaolin has good comprehensive performance. Volcanic ash reaction and polymerization reaction are more sufficient, so that the strength of the coal gangue aggregate concrete is improved.
本发明涉及混凝土制备技术领域，且公开了一种全煤矸石高性能混凝土及其制备方法，包括以下物料：复合粉状增强剂；地质聚合物掺合料；煤矸石。该全煤矸石高性能混凝土及其制备方法，原状煤矸石经活化后，红煤矸石表面的活性成分氧化铝、氧化钙可与水泥、矿粉、复合粉状增强剂形成水化反应，界面结合强度远高于原状煤矸石或水洗煤矸石，因此，在实现100％煤矸石替代天然砂石材料的基础上，还可实现C50及以上中高强度的煤矸石骨料混凝土，复合粉状增强剂，其中的煤系高岭土煅烧后具有良好的可塑性、很高的粘结性、较好的耐火性等理化性质，与矿粉等混合后颗粒接近纳米级别，火山灰反应、聚合反应更加充分，使得煤矸石骨料混凝土强度增高。
Full-coal-gangue high-performance concrete and preparation method thereof
一种全煤矸石高性能混凝土及其制备方法
CHU FENGMING (author) / ZHAO LIANDI (author) / CHU TIANSHU (author)
2023-02-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of high-performance concrete containing coal gangue
| European Patent Office | 2022
Full-coal-gangue quick-hardening early-strength concrete and preparation method thereof
| European Patent Office | 2022
Coal gangue type concrete and preparation method thereof
| European Patent Office | 2023
Coal gangue pervious concrete and preparation method thereof
| European Patent Office | 2023
Silica fume modified full-coal gangue coarse aggregate concrete and preparation method thereof
| European Patent Office | 2024