Non-fluidity rapid-hardening strong-cohesive-force phosphate cement repairing material and preparation method thereof
A technology of phosphate cement and repair materials, which is applied in the field of non-fluid quick-setting strong cohesion phosphate cement repair materials and its preparation, which can solve the problems of short setting time and achieve convenient transportation, significant economic benefits and social benefits , the effect of increasing the overall stiffness
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Embodiment 1
[0015] Phosphate cement-based rapid repair material, firstly mix 5% ammonium dihydrogen phosphate, 20% magnesium oxide, 2% fly ash, 30% rubber powder, 6% silica fume, 0.4% polycarboxylic acid Put water reducer, 1.6% sodium silicate, and 0.5% retarder into the mixer and stir evenly, then put 25% of sand into the mixer and mix evenly, then add 8% of water into the mixing drum, add the required Slowly, after all the water is added, keep stirring for 1-2 minutes until a uniform paste with good fluidity is formed, then add 1.5% polypropylene fiber and stir for 30 seconds, then it can be prepared into phosphate cement-based quick repair Material.
[0016] The fly ash test results are shown in Table 1.
[0017] Table 1 Fly ash test results.
[0018]
[0019] 1. Performance test results of phosphate cement-based rapid repair materials.
[0020] 1. Setting time.
[0021] The experimental equipment adopts the instruments and appliances specified in GB1346 "Cement Standard Consist...
Embodiment 2
[0029] Phosphate cement-based rapid repair material, sand 20%, ammonium dihydrogen phosphate 6%, magnesium oxide 18%, fly ash 3%, rubber powder 32%, silica fume 7%, polycarboxylate superplasticizer 0.5%, Sodium silicate 1.5%, polypropylene fiber 2%, retarder 1%, water 9%.
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