Bridge deck pavement concrete prepared from slag aggregate and production method thereof
A bridge deck paving and concrete technology, which is applied in the field of building materials, can solve the problems of shortening the service life of concrete structures, accelerating the rate of harmful ion erosion, and cracking in concrete, so as to overcome low tensile strength, improve mechanical properties, interface The effect of improving adhesion
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Embodiment 1
[0031] The ratio of raw materials for bridge deck paving concrete prepared from slag aggregates by weight is shown in Table 1:
[0032] Table 1 Proportion of each raw material by weight
[0033]
[0034] The cement described in Table 1 is ordinary Portland cement P.O.42.5 grade, the fine aggregate is high-titanium heavy slag sand, the fineness modulus is 2.5-3.0, the coarse aggregate is high-titanium heavy slag, and the shrinkage reducing agent is carbon Epoxy compounds of alcohols with a chain length of 3 and alkyl polyoxyethylene ethers are mixed at a weight ratio of 1:1, and the toughening agent is a siloxane group and a polyether group with 103 orders of magnitude structural units polyether-based polyoxysilane, polycarboxylate water reducer; the steel fiber is a multi-anchor fiber, the length of the multi-anchor fiber is 30±0.1mm, the diameter is 0.55±0.05mm, and the tensile strength is ≥600MPa. Elongation at break ≤ 30%.
[0035] According to the amount in Table 1, t...
Embodiment 2
[0038] The ratio of raw materials for bridge deck pavement concrete prepared from slag aggregates by weight is shown in Table 2:
[0039] Table 2 Proportion of each raw material by weight
[0040]
[0041] The cement described in Table 2 is ordinary Portland cement P.O.42.5 grade, the fine aggregate is high-titanium heavy slag sand, the fineness modulus is 2.5-3.0, the coarse aggregate is high-titanium heavy slag, and the shrinkage reducing agent is carbon Epoxy compounds of alcohols with a chain length of 2 and alkyl polyoxyethylene ethers are mixed at a weight ratio of 1:1; the toughening agent is a siloxane group and a polyether group with 104 orders of magnitude structural units The polyether-based polyoxysilane synthesized by the group; the water-reducing agent is a polycarboxylic acid-based water-reducing agent.
[0042] According to the amount in Table 2, the shrinkage reducing agent, the toughening agent and the water reducing agent were taken and mixed, and the shri...
Embodiment 3
[0045] The ratio of raw materials for bridge deck pavement concrete prepared from slag aggregates by weight is shown in Table 3:
[0046] Table 3 Proportions by weight of each raw material
[0047]
[0048] The cement described in Table 3 is ordinary Portland cement P.O.42.5 grade, the fine aggregate is high-titanium heavy slag sand, the fineness modulus is 2.5-3.0, the coarse aggregate is high-titanium heavy slag, and the shrinkage reducing agent is carbon Epoxy compounds of alcohols with a chain length of 4 and alkyl polyoxyethylene ethers are mixed at a weight ratio of 1:1; the toughening agent is a siloxane group and a polyether group with a structural unit of the order of 105 The polyether-based polyoxysilane synthesized by the group, and the water-reducer is a polycarboxylate-based water-reducer.
[0049] According to the amount in Table 3, the shrinkage reducing agent, the toughening agent and the water reducing agent were mixed, and the shrinkage reducing agent, th...
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