Polymer-type water glass curing agent and application in water glass chemical grouting materials
A technology of chemical grouting and water glass, applied in application, fertilizer mixture, soil conditioning materials, etc., can solve the problems of brittle performance, low strength of consolidated body, difficult control of curing time, etc., to improve toughness, convenient construction, and not easy to corrode The effect of grouting equipment
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Embodiment 1
[0037] A. Synthesis of water glass curing agent
[0038] In a four-necked flask filled with nitrogen, equipped with a stirrer, a thermometer, a reflux condenser, and a constant pressure funnel, add half of the initiator of the oxidation-reduction system that has been configured (0.8g ammonium persulfate, 0.2g sodium bisulfite , 50g water), 0.1g sodium dodecylbenzenesulfonate, 0.1g dodecyl mercaptan, 0.3gNa 3 PO 4 12H 2 O, add 20g of acrylic acid and 10g of butyl methacrylate, raise the temperature to 50°C while stirring, then slowly add the mixture of 50g of acrylic acid and 20g of butyl methacrylate dropwise with a constant pressure funnel, and divide the remaining mixture into three batches at the same time. Add the initiator of the oxidation-reduction system into the system, after the dropwise addition, react for another 2 to 3 hours, and cool to obtain a polymer-based water glass curing agent for use.
[0039] B. Configuration of water glass chemical grouting material ...
Embodiment 2
[0044] A. Synthesis of water glass curing agent
[0045]In the four-necked flask that is full of nitrogen, stirrer, thermometer, reflux condenser, constant pressure funnel are housed, add the initiator (0.8g ammonium persulfate, 0.2g ferrous sulfate, 50g water), 0.4g fatty alcohol polyoxyethylene ether, 0.08g dodecanethiol, 0.3gNa 3 PO 4 12H 2 O, add 30g of methacrylic acid and 20g of ethyl methacrylate, raise the temperature to 60°C while stirring, then slowly add the mixture of 30g of acrylic acid and 20g of butyl methacrylate dropwise with a constant pressure funnel, and divide it into three batches at the same time Add the remaining initiator of the oxidation-reduction system into the system, after the dropwise addition, react for another 2 to 3 hours, and cool to obtain a polymer-based water glass curing agent for use.
[0046] B. Configuration of water glass chemical grouting material
[0047] Take 50g of potassium silicate, add 50g of water, and stir 20g of fly ash ...
Embodiment 3
[0051] A. Synthesis of water glass curing agent
[0052] In a four-necked flask filled with nitrogen, equipped with a stirrer, a thermometer, a reflux condenser, and a constant pressure funnel, add half of the initiator of the oxidation-reduction system that has been configured (0.6g potassium persulfate, 1g sodium bisulfite, 100g water), 0.1g sodium dodecylbenzenesulfonate, 0.1g dodecyl mercaptan, 0.3gNa 3 PO 4 12H 2 O, add 20g vinyl acetate and 20g hydroxyethyl methacrylate, raise the temperature to 60°C while stirring, then slowly add the mixture of 30g vinyl acetate and 30g hydroxyethyl methacrylate dropwise with constant pressure funnel, at the same time The remaining initiator of the oxidation-reduction system is added into the system in three batches, after the dropwise addition, the reaction is continued for 2 to 3 hours, and the polymer-based water glass curing agent is obtained by cooling for future use.
[0053] B. Configuration of water glass chemical grouting m...
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