A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Salt-freezing-resistant concrete containing nano TiO2 and SiO2
The invention belongs to the technical field of building materials, and relates to concrete, in particular to salt freezing resistant concrete containing nano TiO2 and SiO2, which is prepared from the following components in parts by weight: 90 to 110 parts of cement, 190 to 210 parts of sand, 360 to 380 parts of gravel, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 0.27 to 1.65 parts of nano SiO2, 0.27 to 1.65 parts of nano TiO2 and 42 to 52 parts of water. The salt-freezing-resistant concrete containing nano TiO2 and SiO2 disclosed by the invention is simple in composition and low in cost, nano TiO2 and SiO2 are added on the basis of traditional concrete, the early strength of the concrete can be remarkably improved, the early strength is increased by about 20-30% along with the increase of the dosage of nano TiO2 and SiO2, and the later strength is also improved, but the increase is small. Compared with plain concrete, the salt resistance and denudation resistance of the surface of the concrete containing nano TiO2 and SiO2 are remarkably improved. The salt-freezing-resistant concrete containing the nano TiO2 and the nano SiO2 disclosed by the invention is expected to be popularized and applied in high-cold and high-altitude saline-alkali areas.
本发明属于建筑材料技术领域，涉及混凝土，尤其涉及一种抗盐冻含纳米TiO2和SiO2混凝土，按重量份数包括如下组分：水泥90～110份，砂子190～210份，碎石360～380份，聚羧酸类减水剂0.5～1.5份，纳米SiO2 0.27～1.65份，纳米TiO2 0.27～1.65份，水42～52份。本发明所公开的抗盐冻含纳米TiO2和SiO2混凝土，组成简单，成本不高，是在传统混凝土基础之上，添加纳米TiO2和SiO2，可显著提高混凝土早期强度，并随着纳米TiO2和SiO2用量的增加而增加约20～30％，后期强度也有所提高，但增加较小。与素混凝土相比，本发明的含纳米TiO2和SiO2混凝土表面的抗盐和抗剥蚀特性得到了显著改善。本发明所公开的抗盐冻含纳米TiO2和SiO2混凝土，有望在高寒、高海拔盐碱地区得以推广应用。
Salt-freezing-resistant concrete containing nano TiO2 and SiO2
The invention belongs to the technical field of building materials, and relates to concrete, in particular to salt freezing resistant concrete containing nano TiO2 and SiO2, which is prepared from the following components in parts by weight: 90 to 110 parts of cement, 190 to 210 parts of sand, 360 to 380 parts of gravel, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 0.27 to 1.65 parts of nano SiO2, 0.27 to 1.65 parts of nano TiO2 and 42 to 52 parts of water. The salt-freezing-resistant concrete containing nano TiO2 and SiO2 disclosed by the invention is simple in composition and low in cost, nano TiO2 and SiO2 are added on the basis of traditional concrete, the early strength of the concrete can be remarkably improved, the early strength is increased by about 20-30% along with the increase of the dosage of nano TiO2 and SiO2, and the later strength is also improved, but the increase is small. Compared with plain concrete, the salt resistance and denudation resistance of the surface of the concrete containing nano TiO2 and SiO2 are remarkably improved. The salt-freezing-resistant concrete containing the nano TiO2 and the nano SiO2 disclosed by the invention is expected to be popularized and applied in high-cold and high-altitude saline-alkali areas.
本发明属于建筑材料技术领域，涉及混凝土，尤其涉及一种抗盐冻含纳米TiO2和SiO2混凝土，按重量份数包括如下组分：水泥90～110份，砂子190～210份，碎石360～380份，聚羧酸类减水剂0.5～1.5份，纳米SiO2 0.27～1.65份，纳米TiO2 0.27～1.65份，水42～52份。本发明所公开的抗盐冻含纳米TiO2和SiO2混凝土，组成简单，成本不高，是在传统混凝土基础之上，添加纳米TiO2和SiO2，可显著提高混凝土早期强度，并随着纳米TiO2和SiO2用量的增加而增加约20～30％，后期强度也有所提高，但增加较小。与素混凝土相比，本发明的含纳米TiO2和SiO2混凝土表面的抗盐和抗剥蚀特性得到了显著改善。本发明所公开的抗盐冻含纳米TiO2和SiO2混凝土，有望在高寒、高海拔盐碱地区得以推广应用。
Salt-freezing-resistant concrete containing nano TiO2 and SiO2
一种抗盐冻含纳米TiO2和SiO2混凝土
DONG XIAOMA (author) / CHEN LIFEI (author) / HUANG LINGLING (author)
2022-09-06
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Reactive powder concrete reinforced with nano SiO2-coated TiO2
| British Library Online Contents | 2017
Reactive powder concrete reinforced with nano SiO2-coated TiO2
| British Library Online Contents | 2017
Salt freezing cycle resistant recycled concrete and preparation method thereof
| European Patent Office | 2024
Silanized rubber/nano SiO2 composite anti-freezing concrete and preparation method thereof
| European Patent Office | 2023
Salt-resistant anti-freezing high-durability concrete and preparation method thereof
| European Patent Office | 2024