Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-dispersion carbon nitride modified cement-based material and preparation method thereof
The invention discloses a high-dispersion carbon nitride modified cement-based material and a preparation method thereof.The high-dispersion carbon nitride modified cement-based material is composed of high-dispersion carbon nitride, mixing water and Portland cement, and the specific preparation steps are as follows: step one, urea and lysine hydrochloride are used as raw materials, a thermal polycondensation method is adopted, heating is performed at 180-200 DEG C for 15-20 h to prepare an initial product, and the initial product is cooled to room temperature to obtain the high-dispersion carbon nitride modified cement-based material; dissolving the initial product in water, and purifying to obtain granular high-dispersion carbon nitride; 2, mixing the high-dispersion carbon nitride obtained in the step 1 with mixing water according to a mass ratio, and carrying out ultrasonic treatment to obtain a solution containing the high-dispersion carbon nitride; and 3, mixing the high-dispersion carbon nitride solution obtained in the step 2 with Portland cement according to a mass ratio, and stirring to obtain the high-dispersion carbon nitride modified cement-based material. The high-dispersion carbon nitride modified cement-based material is simple and convenient to prepare and low in preparation cost, and the mechanical property and chloride ion migration resistance of the cement-based material can be remarkably improved.
本发明公开了一种高分散氮化碳改性水泥基材料及其制备方法，由高分散氮化碳、拌合水、硅酸盐水泥三部分组成，具体制备步骤如下：步骤一：以尿素和赖氨酸盐酸盐为原料，采用热缩聚法，在180～200℃下加热15～20h制备出初始产物，将初始产物溶于水后进行提纯处理，得到颗粒状高分散氮化碳；步骤二：将步骤一所述的高分散氮化碳与拌合水按质量配比混合，超声后得到含高分散氮化碳溶液；步骤三：将步骤二所述的含高分散氮化碳溶液与硅酸盐水泥按质量配比混合，搅拌后得到高分散氮化碳改性水泥基材料。该高分散氮化碳改性水泥基材料制备简便、制备成本低，可显著提升水泥基材料力学性能及抗氯离子迁移性能。
High-dispersion carbon nitride modified cement-based material and preparation method thereof
The invention discloses a high-dispersion carbon nitride modified cement-based material and a preparation method thereof.The high-dispersion carbon nitride modified cement-based material is composed of high-dispersion carbon nitride, mixing water and Portland cement, and the specific preparation steps are as follows: step one, urea and lysine hydrochloride are used as raw materials, a thermal polycondensation method is adopted, heating is performed at 180-200 DEG C for 15-20 h to prepare an initial product, and the initial product is cooled to room temperature to obtain the high-dispersion carbon nitride modified cement-based material; dissolving the initial product in water, and purifying to obtain granular high-dispersion carbon nitride; 2, mixing the high-dispersion carbon nitride obtained in the step 1 with mixing water according to a mass ratio, and carrying out ultrasonic treatment to obtain a solution containing the high-dispersion carbon nitride; and 3, mixing the high-dispersion carbon nitride solution obtained in the step 2 with Portland cement according to a mass ratio, and stirring to obtain the high-dispersion carbon nitride modified cement-based material. The high-dispersion carbon nitride modified cement-based material is simple and convenient to prepare and low in preparation cost, and the mechanical property and chloride ion migration resistance of the cement-based material can be remarkably improved.
本发明公开了一种高分散氮化碳改性水泥基材料及其制备方法，由高分散氮化碳、拌合水、硅酸盐水泥三部分组成，具体制备步骤如下：步骤一：以尿素和赖氨酸盐酸盐为原料，采用热缩聚法，在180～200℃下加热15～20h制备出初始产物，将初始产物溶于水后进行提纯处理，得到颗粒状高分散氮化碳；步骤二：将步骤一所述的高分散氮化碳与拌合水按质量配比混合，超声后得到含高分散氮化碳溶液；步骤三：将步骤二所述的含高分散氮化碳溶液与硅酸盐水泥按质量配比混合，搅拌后得到高分散氮化碳改性水泥基材料。该高分散氮化碳改性水泥基材料制备简便、制备成本低，可显著提升水泥基材料力学性能及抗氯离子迁移性能。
High-dispersion carbon nitride modified cement-based material and preparation method thereof
一种高分散氮化碳改性水泥基材料及其制备方法
HE HAIJIE (Autor:in) / HE CHUANG (Autor:in) / WANG SHIFANG (Autor:in) / ZHANG WENJIE (Autor:in) / YUAN JI (Autor:in)
06.08.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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