Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules
The invention discloses a method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules, which comprises the following steps: calculating according to concrete mix proportion parameters to obtain a calculated value of an internal curing water-binder ratio, increasing the calculated value by 0.01-0.02, and determining the internal curing water-binder ratio; the mass water absorption rate of the internal curing microcapsules is tested, and the dosage of the internal curing microcapsules is obtained through calculation; the internal curing microcapsules are used for replacing the fine aggregate in an isovolumetric mode, and the low-shrinkage concrete mix proportion is obtained through calculation; the internal curing microcapsules are put into the mixing water and the internal curing water to be soaked for 3-5 days, stirring of the low-shrinkage concrete is conducted, and pouring forming is conducted. The invention provides a novel method for preparing low-shrinkage high-strength concrete by using the water-saturated internal curing microcapsule, by means of the method, the self-shrinkage of the concrete can be greatly reduced, and the ultralow-shrinkage concrete can be prepared, so that the cracking phenomenon of the concrete is reduced, and the crack resistance of the concrete is remarkably improved.
本发明公开了一种采用内养护微胶囊制备低收缩高强混凝土的方法，包括以下步骤：根据混凝土配合比参数进行计算，得到内养护水胶比的计算值，将该计算值增加0.01~0.02，确定内养护水胶比；测试内养护微胶囊的质量吸水率，并通过计算得到内养护微胶囊用量；利用内养护微胶囊等体积替代细骨料，计算得到低收缩混凝土配合比；将内养护微胶囊放入拌合水和内养护水中浸泡3~5天，进行低收缩混凝土的搅拌、浇筑成型。本发明提供了一种利用饱水内养护微胶囊制备低收缩高强混凝土的新方法，借助本发明的方法，可大幅降低混凝土的自收缩，能够制备超低收缩混凝土，从而减少混凝土开裂现象，显著提高混凝土的抗裂性。
Method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules
The invention discloses a method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules, which comprises the following steps: calculating according to concrete mix proportion parameters to obtain a calculated value of an internal curing water-binder ratio, increasing the calculated value by 0.01-0.02, and determining the internal curing water-binder ratio; the mass water absorption rate of the internal curing microcapsules is tested, and the dosage of the internal curing microcapsules is obtained through calculation; the internal curing microcapsules are used for replacing the fine aggregate in an isovolumetric mode, and the low-shrinkage concrete mix proportion is obtained through calculation; the internal curing microcapsules are put into the mixing water and the internal curing water to be soaked for 3-5 days, stirring of the low-shrinkage concrete is conducted, and pouring forming is conducted. The invention provides a novel method for preparing low-shrinkage high-strength concrete by using the water-saturated internal curing microcapsule, by means of the method, the self-shrinkage of the concrete can be greatly reduced, and the ultralow-shrinkage concrete can be prepared, so that the cracking phenomenon of the concrete is reduced, and the crack resistance of the concrete is remarkably improved.
本发明公开了一种采用内养护微胶囊制备低收缩高强混凝土的方法，包括以下步骤：根据混凝土配合比参数进行计算，得到内养护水胶比的计算值，将该计算值增加0.01~0.02，确定内养护水胶比；测试内养护微胶囊的质量吸水率，并通过计算得到内养护微胶囊用量；利用内养护微胶囊等体积替代细骨料，计算得到低收缩混凝土配合比；将内养护微胶囊放入拌合水和内养护水中浸泡3~5天，进行低收缩混凝土的搅拌、浇筑成型。本发明提供了一种利用饱水内养护微胶囊制备低收缩高强混凝土的新方法，借助本发明的方法，可大幅降低混凝土的自收缩，能够制备超低收缩混凝土，从而减少混凝土开裂现象，显著提高混凝土的抗裂性。
Method for preparing low-shrinkage high-strength concrete by adopting internal curing microcapsules
一种采用内养护微胶囊制备低收缩高强混凝土的方法
QU YANAN (Autor:in) / ZHONG XINHUA (Autor:in) / WANG JIAHE (Autor:in) / LI XIANGTAO (Autor:in) / XIE YONGJIANG (Autor:in) / LI HUAJIAN (Autor:in) / TAN YANBIN (Autor:in) / LI LIANJI (Autor:in) / KONG QINGXIN (Autor:in) / SU WANYU (Autor:in)
30.06.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B28B
Formgeben von Ton oder anderen keramischen Stoffzusammensetzungen, Schlacke oder von Mischungen, die zementartiges Material enthalten, z.B. Putzmörtel
,
SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
/
B28C
Tonaufbereitung
,
PREPARING CLAY
/
G01N
Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften
,
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
/
G16C
| British Library Online Contents | 2014
High-strength self-curing low-shrinkage concrete for pavement applications
| Taylor & Francis Verlag | 2010
High-strength self-curing low-shrinkage concrete for pavement applications
| Online Contents | 2010