Surface reinforcement material for cement concrete pavement and preparation method thereof
A technology of cement concrete and strengthening materials, which is applied in the field of inorganic materials, can solve the problems of poor controllability of setting time, high cost, and high cost of asphalt concrete, and achieves remarkable freeze-thaw resistance, increased dynamic modulus, and reduced wear value.
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[0024] The preparation method of the surface reinforcement material of the cement concrete pavement of the present invention comprises the steps: (1) dissolving silicon dioxide in the defoamer to make the solution uniform; (2) adding zirconium dioxide and adding the defoamer for the second time (3) Add lithium silicate, heat, rise to 95-105°C, stop heating, and cool down; (4) Add zirconium dioxide for the second time, cool down to 60-70°C; (5) Add lithium silicate for the second time , heating to raise the temperature, adding a dispersant and a stabilizer to cool the solution down to normal temperature.
[0025] Stir in step (1) for 5-10 minutes to make the solution uniform;
[0026] The defoamer described in step (2) dissolves and generates heat so that the solution temperature is 60-70°C;
[0027] Add lithium silicate solution in step (3), stir for 15-20min, heat to raise the solution temperature to 95-105°C, and continuously stir to lower the solution temperature to 92-95°...
Embodiment 1
[0035] The surface strengthening material of cement concrete pavement includes 4.5 parts of silica, 88 parts of lithium silicate, 3 parts of zirconia, 2.5 parts of dispersant, 3 parts of defoamer and 1 part of stabilizer;
[0036] The preparation method is as follows:
[0037] (1) Weigh the defoamer, zirconium dioxide, and lithium silicate, and divide them into two equal parts; (2) dissolve silicon dioxide into the defoamer, stir for 5 minutes to make the solution uniform; (3) then add zirconium dioxide and Defoamer, the defoamer dissolves and generates heat so that the solution temperature is 60°C; (4) Add lithium silicate solution, stir for 15 minutes, heat the solution temperature to 100°C, continue stirring to reduce the solution temperature to 92°C, stop Heat and continue to stir; (5) After the solution is uniform, add zirconium dioxide, stir and cool down to 60°C; (6) Add lithium silicate solution, stir for 15 minutes, heat to raise the temperature of the solution to 100...
Embodiment 2
[0039] The surface strengthening material of the cement concrete pavement includes 3 parts of silica, 92 parts of lithium silicate, 2 parts of zirconium dioxide, 3 parts of dispersant, 2 parts of defoamer and 2 parts of stabilizer;
[0040] The preparation method is as follows:
[0041] (1) weigh defoamer, zirconium dioxide, lithium silicate, and divide into two equal parts; (2) dissolve silicon dioxide into defoamer, stir for 8 minutes to make the solution uniform; (3) then add zirconium dioxide and Defoamer, the defoamer dissolves and generates heat so that the solution temperature is 65°C; (4) Add lithium silicate solution, stir for 17 minutes, heat the solution temperature to 100°C, continue stirring to reduce the solution temperature to 94°C, stop Heat and continue to stir; (5) After the solution is uniform, add zirconium dioxide, stir and cool down to 65°C; (6) Add lithium silicate solution, stir for 17min, heat to raise the temperature of the solution to 100°C, add disp...
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