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A platform for research: civil engineering, architecture and urbanism
Concrete structure anti-crack reinforcing construction technology
The invention relates to the technical field of constructional engineering, and discloses a concrete structure anti-crack reinforcing construction process which comprises the following steps: S1, material preparation: mixing a fiber composition with the mixing amount of fibers being 0.5%-1% of the weight of concrete into concrete, adding nanoscale silicon dioxide particles with the adding amount being 0.5%-1% of the weight of cement, and uniformly mixing to obtain a mixture; mixing slag powder, fly ash and silica fume according to a ratio of 2: 1: 1 to form a composite admixture; s2, mixing and stirring: mixing the materials with the cement, the sand and the stone in proportion, and stirring by adopting a two-stage stirring method until the concrete mixture is uniform. Various fibers and nano materials are doped into concrete, a two-stage stirring method and a three-stage vibrating method are adopted, and technologies such as partitioned pouring, a flexible isolation belt and multi-stage prestress tensioning are introduced, so that the crack resistance and durability of the concrete are remarkably enhanced, and generation and development of cracks are effectively controlled; the method is especially suitable for complex structure and mass concrete engineering.
本发明涉及建筑工程技术领域，公开了一种混凝土结构抗裂增强施工工艺，包括以下步骤：S1、材料准备：在混凝土中掺入纤维组合物，纤维的掺入量为混凝土重量的0.5%‑1%，添加纳米级二氧化硅颗粒，添加量为水泥重量的0.5%‑1%，将矿渣粉、粉煤灰和硅灰按照2:1:1混合形成复合掺合料；S2、混合与拌制：将上述材料与水泥、砂、石料按比例混合，并采用两阶段搅拌法进行搅拌，直至混凝土拌合物均匀。通过在混凝土中掺入多种纤维和纳米材料，采用两阶段搅拌法和三阶段振捣法，并引入分区浇筑、柔性隔离带以及多阶段预应力张拉等技术，显著增强了混凝土的抗裂性和耐久性，有效控制了裂缝的产生和发展，特别适用于复杂结构和大体积混凝土工程。
Concrete structure anti-crack reinforcing construction technology
The invention relates to the technical field of constructional engineering, and discloses a concrete structure anti-crack reinforcing construction process which comprises the following steps: S1, material preparation: mixing a fiber composition with the mixing amount of fibers being 0.5%-1% of the weight of concrete into concrete, adding nanoscale silicon dioxide particles with the adding amount being 0.5%-1% of the weight of cement, and uniformly mixing to obtain a mixture; mixing slag powder, fly ash and silica fume according to a ratio of 2: 1: 1 to form a composite admixture; s2, mixing and stirring: mixing the materials with the cement, the sand and the stone in proportion, and stirring by adopting a two-stage stirring method until the concrete mixture is uniform. Various fibers and nano materials are doped into concrete, a two-stage stirring method and a three-stage vibrating method are adopted, and technologies such as partitioned pouring, a flexible isolation belt and multi-stage prestress tensioning are introduced, so that the crack resistance and durability of the concrete are remarkably enhanced, and generation and development of cracks are effectively controlled; the method is especially suitable for complex structure and mass concrete engineering.
本发明涉及建筑工程技术领域，公开了一种混凝土结构抗裂增强施工工艺，包括以下步骤：S1、材料准备：在混凝土中掺入纤维组合物，纤维的掺入量为混凝土重量的0.5%‑1%，添加纳米级二氧化硅颗粒，添加量为水泥重量的0.5%‑1%，将矿渣粉、粉煤灰和硅灰按照2:1:1混合形成复合掺合料；S2、混合与拌制：将上述材料与水泥、砂、石料按比例混合，并采用两阶段搅拌法进行搅拌，直至混凝土拌合物均匀。通过在混凝土中掺入多种纤维和纳米材料，采用两阶段搅拌法和三阶段振捣法，并引入分区浇筑、柔性隔离带以及多阶段预应力张拉等技术，显著增强了混凝土的抗裂性和耐久性，有效控制了裂缝的产生和发展，特别适用于复杂结构和大体积混凝土工程。
Concrete structure anti-crack reinforcing construction technology
一种混凝土结构抗裂增强施工工艺
ZHANG XUEMING (author)
2024-11-29
Patent
Electronic Resource
Chinese
IPC:
E04G
SCAFFOLDING
,
Baugerüste
/
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
/
C04B
Kalk
,
LIME
Construction method and structure of anti-crack structure reinforcing band for concrete building
| European Patent Office | 2021
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