Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High performance expandable pre-stressed concrete and preparation method thereof
The invention belongs to the technical field of civil engineering, and specifically relates to a high performance expandable pre-stressed concrete and a preparation method thereof. The concrete comprises a cementing material, modified water-absorbing zeolite, an expanding agent, a water reducer, water, fine aggregate, and coarse aggregate. The modified water-absorbing zeolite is modified in two steps and is saturated by water in vacuum. An in-concrete curing technology and a contraction compensating technology are used, under a low water-cement ratio, an expanding agent can be fully hydrated;the problem that an expanding agent cannot be used in high strength concrete with a low water-cement ratio is solved; and the problem of strength loss of concrete in the later period due to excessiveexpanding agent is also solved.
本发明属于土木工程技术领域，具体涉及一种高性能膨胀预应力混凝土及其制备方法，该混凝土的成分包括胶凝材料、改性吸水沸石、膨胀剂、减水剂、水、细骨料和粗骨料；所述改性吸水沸石通过两步改性后真空饱水而得。该混凝土综合使用混凝土内养护技术和收缩补偿技术，在维持较低水灰比的条件下仍能够使膨胀剂充分水化，解决了膨胀剂不能在低水灰比的高强混凝土中应用的问题，以及过量使用膨胀剂导致混凝土后期强度损失等工程难题。
High performance expandable pre-stressed concrete and preparation method thereof
The invention belongs to the technical field of civil engineering, and specifically relates to a high performance expandable pre-stressed concrete and a preparation method thereof. The concrete comprises a cementing material, modified water-absorbing zeolite, an expanding agent, a water reducer, water, fine aggregate, and coarse aggregate. The modified water-absorbing zeolite is modified in two steps and is saturated by water in vacuum. An in-concrete curing technology and a contraction compensating technology are used, under a low water-cement ratio, an expanding agent can be fully hydrated;the problem that an expanding agent cannot be used in high strength concrete with a low water-cement ratio is solved; and the problem of strength loss of concrete in the later period due to excessiveexpanding agent is also solved.
本发明属于土木工程技术领域，具体涉及一种高性能膨胀预应力混凝土及其制备方法，该混凝土的成分包括胶凝材料、改性吸水沸石、膨胀剂、减水剂、水、细骨料和粗骨料；所述改性吸水沸石通过两步改性后真空饱水而得。该混凝土综合使用混凝土内养护技术和收缩补偿技术，在维持较低水灰比的条件下仍能够使膨胀剂充分水化，解决了膨胀剂不能在低水灰比的高强混凝土中应用的问题，以及过量使用膨胀剂导致混凝土后期强度损失等工程难题。
High performance expandable pre-stressed concrete and preparation method thereof
一种高性能膨胀预应力混凝土及其制备方法
HOU DONGWEI (Autor:in) / HAN YUDONG (Autor:in) / SUN GUOHUI (Autor:in) / SUN HEPING (Autor:in) / YUAN ZHEN (Autor:in) / LIU WEIJING (Autor:in) / XU BING (Autor:in) / LYU XINMING (Autor:in) / LIU DONGSHENG (Autor:in) / GAO WENLIANG (Autor:in)
10.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2024
PRE-STRESSED ANCHOR CABLE EXPANDABLE INNER ANCHOR HEAD
| Europäisches Patentamt | 2022
Pre-stressed and post-stressed concrete
| Engineering Index Backfile | 1948
- PRE-STRESSED CONCRETE STRUCTURE AND MANUFACTURING METHOD THEREOF
| Europäisches Patentamt | 2020