A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention is applicable to the technical field of concrete, and relates to low-shrinkage low-viscosity and ultrahigh-strength concrete which comprises the following components in parts by weight: 60-80 parts of Portland cement, 0.4-0.6 part of magnesium oxide, 60-80 parts of coarse aggregate, 60-80 parts of fine aggregate, 10-12 parts of carbon fiber, 20-40 parts of fly ash, 30-50 parts of microspheres, 0.8-1 part of a water reducing agent, 0.8-1 part of cellulose ether and 15-35 part of water. The Portland cement and the magnesium oxide are matched for use, so that the concrete obtained in the invention has low shrinkage, and the cracking phenomenon after use can be avoided; and by adding the fly ash, the microbeads, the water reducing agent and the cellulose ether, the concrete has the characteristic of low viscosity, so that the transportation of the concrete is facilitated, and the use of the concrete is facilitated.
本发明适用混凝土技术领域，一种低收缩低粘度超高强混凝土，所述混凝土，包括以下重量份的组分：硅酸盐水泥60‑80份、氧化镁0.4‑0.6份、粗骨料60‑80份、细骨料60‑80份、碳纤维10‑12份、粉煤灰20‑40份、微珠30‑50份、减水剂0.8‑1份、纤维素醚0.8‑1份、水15‑35份；本发明中通过硅酸盐水泥和氧化镁的配合使用，可使得本发明中获得混凝土具有低收缩，从而可避免在使用后发生开裂现象；且本发明中通过加入粉煤灰、微珠、减水剂和纤维素醚可使得本发明中的混凝土具有低粘度的特点，从而利于混凝土的运输，则利于使用。
The invention is applicable to the technical field of concrete, and relates to low-shrinkage low-viscosity and ultrahigh-strength concrete which comprises the following components in parts by weight: 60-80 parts of Portland cement, 0.4-0.6 part of magnesium oxide, 60-80 parts of coarse aggregate, 60-80 parts of fine aggregate, 10-12 parts of carbon fiber, 20-40 parts of fly ash, 30-50 parts of microspheres, 0.8-1 part of a water reducing agent, 0.8-1 part of cellulose ether and 15-35 part of water. The Portland cement and the magnesium oxide are matched for use, so that the concrete obtained in the invention has low shrinkage, and the cracking phenomenon after use can be avoided; and by adding the fly ash, the microbeads, the water reducing agent and the cellulose ether, the concrete has the characteristic of low viscosity, so that the transportation of the concrete is facilitated, and the use of the concrete is facilitated.
本发明适用混凝土技术领域，一种低收缩低粘度超高强混凝土，所述混凝土，包括以下重量份的组分：硅酸盐水泥60‑80份、氧化镁0.4‑0.6份、粗骨料60‑80份、细骨料60‑80份、碳纤维10‑12份、粉煤灰20‑40份、微珠30‑50份、减水剂0.8‑1份、纤维素醚0.8‑1份、水15‑35份；本发明中通过硅酸盐水泥和氧化镁的配合使用，可使得本发明中获得混凝土具有低收缩，从而可避免在使用后发生开裂现象；且本发明中通过加入粉煤灰、微珠、减水剂和纤维素醚可使得本发明中的混凝土具有低粘度的特点，从而利于混凝土的运输，则利于使用。
Low-shrinkage, low-viscosity and ultrahigh strength concrete
| European Patent Office | 2015
Low-shrinkage low-viscosity ultrahigh-strength concrete and member thereof
| European Patent Office | 2022
Low-shrinkage low-viscosity ultrahigh-strength concrete and preparation method thereof
| European Patent Office | 2021