A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Enteromorpha-based nanocellulose modified cement-based composite material and preparation method thereof
The invention discloses an enteromorpha-based nanocellulose modified cement-based composite material and a preparation method thereof. The cement-based composite material contains an enteromorpha-based nanocellulose component. The preparation method comprises the following steps: dissolving enteromorpha-based nanocellulose powder in an aqueous solution, and carrying out ultrasonic treatment in a normal-temperature environment to obtain a nanocellulose solution; adding a cellulose solution in the preparation process of the cement-based composite material, uniformly stirring, pouring and molding, and curing in a standard curing room to obtain the cement-based composite material. According to the enteromorpha-based nanocellulose modified cement-based composite material disclosed by the invention, nanocellulose accelerates early hydration of cement paste, improves the overall hydration degree, optimizes the phase composition of a hydration product, reduces the porosity of cement mortar, and is more compact in structure, so that the physical and mechanical properties of the cement mortar are improved. A proper amount of nano cellulose is added, so that the mechanical property can be obviously improved; and the compressive strength and the breaking strength of the cement-based composite material prepared by the preparation method disclosed by the invention in cement mortar at the age of 28 days are respectively improved by 40% and 20% to the maximum extent.
本发明公开了一种浒苔基纳米纤维素改性水泥基复合材料及制备方法，在所述的水泥基材料中含有浒苔基纳米纤维素组分。将浒苔基纳米纤维素粉末溶解在水溶液中，常温环境下超声处理，得到纳米纤维素溶液；水泥基复合材料配置过程中加入纤维素溶液，均匀搅拌后浇筑成型，标准养护室养护，得到水泥基复合材料。本发明的浒苔基纳米纤维素改性水泥基复合材料，纳米纤维素加快了水泥浆体的早期水化，提高了整体水化程度，优化了水化产物相组成，降低水泥砂浆的孔隙率，结构更加紧密，进而提高了水泥砂浆的物理力学性能。适量的纳米纤维素掺量有利于力学性能显著提升，本发明制作的水泥基复合材料在水泥砂浆28 d龄期的抗压强度和抗折强度分别最大提高40%和20%。
Enteromorpha-based nanocellulose modified cement-based composite material and preparation method thereof
The invention discloses an enteromorpha-based nanocellulose modified cement-based composite material and a preparation method thereof. The cement-based composite material contains an enteromorpha-based nanocellulose component. The preparation method comprises the following steps: dissolving enteromorpha-based nanocellulose powder in an aqueous solution, and carrying out ultrasonic treatment in a normal-temperature environment to obtain a nanocellulose solution; adding a cellulose solution in the preparation process of the cement-based composite material, uniformly stirring, pouring and molding, and curing in a standard curing room to obtain the cement-based composite material. According to the enteromorpha-based nanocellulose modified cement-based composite material disclosed by the invention, nanocellulose accelerates early hydration of cement paste, improves the overall hydration degree, optimizes the phase composition of a hydration product, reduces the porosity of cement mortar, and is more compact in structure, so that the physical and mechanical properties of the cement mortar are improved. A proper amount of nano cellulose is added, so that the mechanical property can be obviously improved; and the compressive strength and the breaking strength of the cement-based composite material prepared by the preparation method disclosed by the invention in cement mortar at the age of 28 days are respectively improved by 40% and 20% to the maximum extent.
本发明公开了一种浒苔基纳米纤维素改性水泥基复合材料及制备方法，在所述的水泥基材料中含有浒苔基纳米纤维素组分。将浒苔基纳米纤维素粉末溶解在水溶液中，常温环境下超声处理，得到纳米纤维素溶液；水泥基复合材料配置过程中加入纤维素溶液，均匀搅拌后浇筑成型，标准养护室养护，得到水泥基复合材料。本发明的浒苔基纳米纤维素改性水泥基复合材料，纳米纤维素加快了水泥浆体的早期水化，提高了整体水化程度，优化了水化产物相组成，降低水泥砂浆的孔隙率，结构更加紧密，进而提高了水泥砂浆的物理力学性能。适量的纳米纤维素掺量有利于力学性能显著提升，本发明制作的水泥基复合材料在水泥砂浆28 d龄期的抗压强度和抗折强度分别最大提高40%和20%。
Enteromorpha-based nanocellulose modified cement-based composite material and preparation method thereof
一种浒苔基纳米纤维素改性水泥基复合材料及制备方法
BAI JIAN (author) / YUAN YE (author) / WANG XINYANG (author) / LUO XIAOQUAN (author) / YU ZHENGYU (author) / SANG GUOQING (author) / XU ZHENGHE (author) / ZHOU YIHONG (author) / LI QINFEI (author) / HOU PENGKUN (author)
2024-08-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Cement-based modified composite material and preparation method thereof
| European Patent Office | 2021
Composite modified cement-based material and preparation method thereof
| European Patent Office | 2023
Modified waste rubber, preparation method thereof and cement-based composite material
| European Patent Office | 2023
Modified oil well cement-based composite material and preparation method thereof
| European Patent Office | 2020
Graphene oxide modified cement-based composite material and preparation method thereof
| European Patent Office | 2016