A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reinforcing steel bar corrosion-resistant seawater and sea sand concrete and preparation method thereof
The invention provides steel bar corrosion-resistant seawater and sea sand concrete and a preparation method thereof, and belongs to the technical field of seawater treatment and utilization, and the concrete comprises the following components in parts by weight: a cementing material: 90-95 parts of cement and 5-10 parts of silica fume; the concrete further comprises the following components in parts by weight: 120-150 parts of sea sand, 220-260 parts of stones, 25-35 parts of seawater, 0.3-0.7 part of nitrite, 0.8-1.2 parts of a water reducing agent, 3-6 parts of an expanding agent and modified hydrotalcite. The mass of the modified hydrotalcite accounts for 5-8% of the mass of the cementing material. The preparation method comprises the following steps: S1, preparing pretreated hydrotalcite; s2, preparing modified hydrotalcite; s3, preparing the seawater and sea sand concrete. The seawater and sea sand concrete has the properties of high fluidity, high strength, high volume stability and high corrosion resistance, the limitation of application of seawater and sea sand resources in concrete is solved, and the durability of the steel bar reinforced seawater and sea sand concrete is ensured.
本发明提供一种钢筋阻锈型海水海砂混凝土及其制备方法，属于海水的处理利用技术领域，以重量份数计，混凝土包括如下组分：胶凝材料：水泥90‑95份、硅灰5‑10份；还包括，海砂120‑150份、石子220‑260份、海水25‑35份、亚硝酸盐0.3‑0.7份、减水剂0.8‑1.2份、膨胀剂3‑6份、改性水滑石；改性水滑石的质量占胶凝材料质量的5‑8％。其制备方法包括如下步骤：S1、预处理水滑石的制备；S2、改性水滑石的制备；S3、海水海砂混凝土的制备。该海水海砂混凝土具备高流动性、高强度、高体积稳定性和高耐腐蚀的性能，解决了海水、海砂资源在混凝土中应用的局限性，确保了钢筋增强海水海砂混凝土的耐久性。
Reinforcing steel bar corrosion-resistant seawater and sea sand concrete and preparation method thereof
The invention provides steel bar corrosion-resistant seawater and sea sand concrete and a preparation method thereof, and belongs to the technical field of seawater treatment and utilization, and the concrete comprises the following components in parts by weight: a cementing material: 90-95 parts of cement and 5-10 parts of silica fume; the concrete further comprises the following components in parts by weight: 120-150 parts of sea sand, 220-260 parts of stones, 25-35 parts of seawater, 0.3-0.7 part of nitrite, 0.8-1.2 parts of a water reducing agent, 3-6 parts of an expanding agent and modified hydrotalcite. The mass of the modified hydrotalcite accounts for 5-8% of the mass of the cementing material. The preparation method comprises the following steps: S1, preparing pretreated hydrotalcite; s2, preparing modified hydrotalcite; s3, preparing the seawater and sea sand concrete. The seawater and sea sand concrete has the properties of high fluidity, high strength, high volume stability and high corrosion resistance, the limitation of application of seawater and sea sand resources in concrete is solved, and the durability of the steel bar reinforced seawater and sea sand concrete is ensured.
本发明提供一种钢筋阻锈型海水海砂混凝土及其制备方法，属于海水的处理利用技术领域，以重量份数计，混凝土包括如下组分：胶凝材料：水泥90‑95份、硅灰5‑10份；还包括，海砂120‑150份、石子220‑260份、海水25‑35份、亚硝酸盐0.3‑0.7份、减水剂0.8‑1.2份、膨胀剂3‑6份、改性水滑石；改性水滑石的质量占胶凝材料质量的5‑8％。其制备方法包括如下步骤：S1、预处理水滑石的制备；S2、改性水滑石的制备；S3、海水海砂混凝土的制备。该海水海砂混凝土具备高流动性、高强度、高体积稳定性和高耐腐蚀的性能，解决了海水、海砂资源在混凝土中应用的局限性，确保了钢筋增强海水海砂混凝土的耐久性。
Reinforcing steel bar corrosion-resistant seawater and sea sand concrete and preparation method thereof
一种钢筋阻锈型海水海砂混凝土及其制备方法
LI SHICAI (author) / JIN ZUQUAN (author) / WANG HONGJUN (author) / PANG XIHAI (author) / SU WEI (author) / ZHANG HAI (author) / WANG PENGGANG (author)
2023-03-07
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021
Corrosion of Reinforcing Steel in Concrete Structures Submerged in Seawater
| British Library Conference Proceedings | 1996