Recycled concrete and its preparation method
A technology of recycled concrete and waste concrete, applied in the field of concrete, can solve the problems of limiting the use range of recycled concrete, affecting the mechanical properties of recycled concrete, and high porosity of recycled coarse aggregate, and achieve excellent mechanical strength, impermeability, and excellent mechanical strength , the effect of small water absorption
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preparation example 1
[0034] Preparation example 1 of modifier: Take 6kg of cetyltrimethoxysilane, 10kg of redispersible latex powder, 4kg of polyvinyl alcohol and 2kg of gum arabic powder, heat it up to 80°C, and then add water at 80°C 50kg, and stirred at a constant temperature at a speed of 60r / min for 20min to obtain a modifier.
preparation example 2
[0035] Preparation example 2 of modifier: Take 7kg of cetyltrimethoxysilane, 15kg of redispersible latex powder, 5kg of polyvinyl alcohol and 3kg of gum arabic powder, heat it up to 85°C, and then add water at 85°C 55kg, and stirred at a constant temperature at a speed of 70r / min for 25min to obtain a modifier.
preparation example 3
[0036]Preparation example 3 of modifier: Take 8kg of cetyltrimethoxysilane, 20kg of redispersible latex powder, 6kg of polyvinyl alcohol and 4kg of gum arabic powder, raise the temperature to 90°C, and then add water at 90°C 60kg, with constant temperature stirring at a speed of 80r / min for 30min to obtain the modifier.
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