A kind of rapid repair material for magnesium phosphate cement and preparation method thereof
A magnesium phosphate cement and repair material technology, applied in the field of cement-based quick repair materials, can solve the problems of short time from mixing magnesium phosphate cement to final setting, difficulty in meeting construction operation and process requirements, and achieve excellent retarding effect and development Small inhibitory effect and low external environmental requirements
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Embodiment 1
[0027] A kind of rapid repair material, by weight parts, comprises the following components:
[0028] 25 parts of magnesium oxide, 17 parts of potassium dihydrogen phosphate, 0.63 parts of ethylenediaminetetraacetic acid dipotassium salt dihydrate, and 6.3 parts of water.
[0029] Preparation:
[0030] (1) Take magnesium oxide and potassium dihydrogen phosphate, and use a cement slurry mixer to stir at a slow speed for 1min to stir and mix it evenly to obtain a uniform powder;
[0031] (2) Dissolve ethylenediaminetetraacetic acid dipotassium salt dihydrate in water, and slowly add it to the above mixture, stir slowly for 1min, then stir rapidly for 2min and put it into a 40mm×40mm×40mm mold, to be tested After the block is hardened, it can be removed from the mold to obtain a quick repair material.
Embodiment 2
[0033] A kind of rapid repair material, by weight parts, comprises the following components:
[0034] 25 parts of magnesium oxide, 17 parts of potassium dihydrogen phosphate, 0.84 parts of ethylenediaminetetraacetic acid dipotassium salt dihydrate, and 6.3 parts of water.
[0035] Preparation:
[0036] (1) Take magnesium oxide and potassium dihydrogen phosphate, and use a cement slurry mixer to stir at a slow speed for 1min to stir and mix it evenly to obtain a uniform powder;
[0037] (2) Dissolve ethylenediaminetetraacetic acid dipotassium salt dihydrate in water, and slowly add it to the above mixture, stir slowly for 1min, then stir rapidly for 2min and put it into a 40mm×40mm×40mm mold, to be tested After the block is hardened, it can be removed from the mold to obtain a quick repair material.
Embodiment 3
[0039] A kind of rapid repair material, by weight parts, comprises the following components:
[0040] 25 parts of magnesium oxide, 17 parts of potassium dihydrogen phosphate, 1.05 parts of ethylenediaminetetraacetic acid dipotassium salt dihydrate, 6.3 parts of water.
[0041] Preparation:
[0042] (1) Take magnesium oxide and potassium dihydrogen phosphate, and use a cement slurry mixer to stir at a slow speed for 1min to stir and mix it evenly to obtain a uniform powder;
[0043] (2) Dissolve ethylenediaminetetraacetic acid dipotassium salt dihydrate in water, and slowly add it to the above mixture, stir slowly for 1min, then stir rapidly for 2min and put it into a 40mm×40mm×40mm mold, to be tested After the block is hardened, it can be removed from the mold to obtain a quick repair material.
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