Bridge support mortar foundation material taking cement and gypsum as bottom materials and preparation method thereof
A technology for bridge bearing mortar and basic materials, applied in the field of building materials, can solve the problems of complex materials and high cost, and achieve the effect of simple materials and low cost
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[0023] Example 1:
[0024] A bridge bearing mortar base material with cement as the base material, the total weight of the bridge bearing base material is 1000kg, and the weight ratio of each component is cement: gypsum: expansion agent: water reducing agent: water retention agent: early strength type Admixture: retarder: defoamer = 20:5:2:0.1:0.1:0.01:0.2:0.01.
[0025] Among them, cement is Portland cement; expansion agent is concrete expansion agent; water reducer is conventional lignosulfonate water reducer; water retention agent is polyacrylamide; early strength admixture is nitrite; The agent is a conventional retarder; the defoamer is polydimethylsiloxane.
Example Embodiment
[0026] Example 2:
[0027] A bridge bearing mortar base material with cement as the base material, the total weight of the bridge bearing base material is 1500kg, and the weight ratio of each component is cement: gypsum: expansion agent: water reducing agent: water retention agent: early strength type Admixture: retarder: defoamer = 40:8:10:0.8:0.8:0.08:1:0.05.
[0028] Cement is aluminate cement; expansion agent is concrete expansion agent; water reducing agent is naphthalene series superplasticizer; water retention agent is sodium polyacrylate; early strength admixture is chromate; defoamer is polyoxyethylene Glyceryl ether.
Example Embodiment
[0029] Example 3:
[0030] A bridge bearing mortar base material with cement as the base material, the total weight of the bridge bearing base material is 2000kg, and the weight ratio of each component is cement: gypsum: expansion agent: water reducing agent: water retention agent: early strength type Admixture: retarder: defoamer = 30:10:8:0.5:0.5:0.05:0.8:0.03.
[0031] Cement is phosphate cement; expansion agent is concrete expansion agent; water reducer is polycarboxylate superplasticizer; water retention agent is starch grafted acrylate; early strength admixture is calcium formate; Oxyethylene polyoxypropylene pentaerythritol ether.
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