A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention belongs to the technical field of concrete, and discloses special concrete for structural reinforcement and a preparation method thereof. The special concrete is prepared from cement, mineral powder, fly ash, silica fume, fine aggregate, coarse aggregate, a water reducing agent, a shrinkage compensation admixture, anti-cracking fibers and a binder. The special reinforced concrete hasthe characteristics of self-compaction, no segregation, fast early strength development, controllable later strength, low shrinkage and the like, fills the market vacancy of reinforced concrete, is classified according to use conditions, avoids using one product to cope with all the conditions, and is divided into a common type and an early strength type according to different ages reaching the design strength. The common type is suitable for newly-added components in transformation and reinforcement and the situation that concrete vibration is difficult in a beam column joint steel bar densearea, a post-cast strip, a constructional column and the like in a newly-built project. The early strength type is suitable for transformation and reinforcement of locally-added components with the increased cross section and the tight construction period and suitable for concrete replacement.
本发明属于混凝土技术领域，公开了一种用于结构加固的特种混凝土及其制备方法，所述特种混凝土的组分包括水泥、矿粉、粉煤灰、硅灰、细骨料、粗骨料、减水剂、补偿收缩掺合料、抗裂纤维和粘结剂，特种加固混凝土具有自密实、不离析、早期强度发展快、后期强度可控制、低收缩等特点，填补了加固混凝土的市场空白，根据使用工况进行了分类，避免用一种产品应对所有工况，根据达到设计强度的龄期不同分为普通型和早强型，普通型适用于改造加固中的新增构件，以及新建工程中的梁柱节点钢筋密集区、后浇带、构造柱等混凝土振捣困难的情况，早强型适用于改造加固增大截面以及工期较紧的局部新增构件和混凝土置换。
The invention belongs to the technical field of concrete, and discloses special concrete for structural reinforcement and a preparation method thereof. The special concrete is prepared from cement, mineral powder, fly ash, silica fume, fine aggregate, coarse aggregate, a water reducing agent, a shrinkage compensation admixture, anti-cracking fibers and a binder. The special reinforced concrete hasthe characteristics of self-compaction, no segregation, fast early strength development, controllable later strength, low shrinkage and the like, fills the market vacancy of reinforced concrete, is classified according to use conditions, avoids using one product to cope with all the conditions, and is divided into a common type and an early strength type according to different ages reaching the design strength. The common type is suitable for newly-added components in transformation and reinforcement and the situation that concrete vibration is difficult in a beam column joint steel bar densearea, a post-cast strip, a constructional column and the like in a newly-built project. The early strength type is suitable for transformation and reinforcement of locally-added components with the increased cross section and the tight construction period and suitable for concrete replacement.
本发明属于混凝土技术领域，公开了一种用于结构加固的特种混凝土及其制备方法，所述特种混凝土的组分包括水泥、矿粉、粉煤灰、硅灰、细骨料、粗骨料、减水剂、补偿收缩掺合料、抗裂纤维和粘结剂，特种加固混凝土具有自密实、不离析、早期强度发展快、后期强度可控制、低收缩等特点，填补了加固混凝土的市场空白，根据使用工况进行了分类，避免用一种产品应对所有工况，根据达到设计强度的龄期不同分为普通型和早强型，普通型适用于改造加固中的新增构件，以及新建工程中的梁柱节点钢筋密集区、后浇带、构造柱等混凝土振捣困难的情况，早强型适用于改造加固增大截面以及工期较紧的局部新增构件和混凝土置换。
Special concrete for structure reinforcement and preparation method thereof
一种用于结构加固的特种混凝土及其制备方法
XU KAI (author)
2021-02-09
Patent
Electronic Resource
Chinese
REINFORCEMENT STRUCTURE OF CONCRETE AND REINFORCEMENT METHOD THEREOF
| European Patent Office | 2016
| European Patent Office | 2016
Green reinforcement modified concrete and preparation method thereof
| European Patent Office | 2022