Cement liquid reinforcing agent based on alkaline papermaking wastewater as solvent and preparation method of cement liquid reinforcing agent
A technology of papermaking wastewater and reinforcing agent, which is applied in the field of cement production, can solve the problems of complex composition and high cost, and achieve the effect of simple preparation method and suitable for popularization and application
Inactive Publication Date: 2022-01-14
莒州水泥(日照)有限公司
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Problems solved by technology
Although it has a certain effect on improving the performance of cement, its composition is relatively complicated, and all chemical raw materials are used, and the cost is relatively expensive.
Method used
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Embodiment 1
[0025] Alkaline papermaking wastewater 74.8%, diethanol monoisopropanolamine 5%, sodium thiocyanate 10%, isooctyl alcohol polyoxyethylene ether phosphate 1.1%, sodium polyacrylate 0.1%, polyaluminum chloride 4%, three Ethanolamine 5%; the above ratios are mass fractions.
Embodiment 2
[0027] Alkaline papermaking wastewater 74.8%, diethanol monoisopropanolamine 5%, sodium thiocyanate 13%, isooctyl alcohol polyoxyethylene ether phosphate 1.5%, sodium polyacrylate 0.2%, polyaluminum chloride 4%, three Ethanolamine 0%; the above ratios are mass fractions.
[0028] Blank 1 group is P·O42.5 cement without adding anything, and blank 2 group is P·O42.5 cement with 3 / 10000 grinding aid and 1% powder grinding aid.
[0029] As shown in the table below, both Example 1 and Example 2 added the cement liquid enhancer described in this technical solution, and the 3d compressive strength of these two groups of cements has a relatively large increase compared with the blank 1 group and the blank 2 group. improve.
[0030]
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Abstract
The invention discloses a cement liquid reinforcing agent based on alkaline papermaking wastewater as a solvent and a preparation method of the cement liquid reinforcing agent. The cement liquid reinforcing agent comprises the following components in percentage by mass: 50-80% of alkaline papermaking wastewater, 1-15% of diethanolisopropanolamine, 5-15% of sodium thiocyanate, 1-12% of isooctanol polyoxyethylene ether phosphate, 0-5% of sodium polyacrylate, 0-5% of polyaluminum chloride and 0-5% of triethanolamine. The alkaline papermaking wastewater is used as the raw material of the efficient cement liquid reinforcing agent, so that waste resources are turned into wealth, energy conservation and emission reduction are facilitated, the cement liquid reinforcing agent is environment-friendly, the production cost of enterprises can be greatly reduced, and the cement liquid reinforcing agent has great social benefits and economic benefits; by adding the reinforcing agent which is 0.5-1.5% of the mass of the cement, the specific surface area of the cement is 350-450m < 2 > / kg, and the strength of the cement can be increased by 1-4MPa on the basis of adding the cement grinding aid; and the preparation method is simple and suitable for popularization and application.
Description
technical field [0001] The invention relates to the technical field of cement production, in particular to a cement liquid enhancer based on alkaline papermaking wastewater as a solvent, a preparation method and application thereof. Background technique [0002] Cement reinforcing agent is an admixture that can increase cement strength, reduce cement production cost, and save mineral resources and energy in the production process of Portland cement. The existing cement additives mainly include some additives that are mainly composed of organic matter and added during the use of cement that can change the performance of cement, and some additives that are combined with inorganic substances and added during cement production to enhance or change the performance of cement. , such as application number 200510017440 discloses a composite cement admixture, which consists of sodium sulfate, aluminum sulfate, calcium chloride, calcium sulfate, slaked lime. Although it has a certain...
Claims
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IPC IPC(8): C04B24/32
CPCC04B40/0039C04B18/241C04B24/16C04B24/122C04B24/32C04B24/2641C04B22/12
Inventor 李刚林王孝松田子霞张念俊
Owner 莒州水泥(日照)有限公司