Method for filling and constructing foam concrete road and bridge
A technology of foam concrete and construction method, which is applied in construction, bridge, bridge construction, etc., can solve the problems of long construction period and low construction efficiency, achieve high construction efficiency, reduce construction difficulty, and increase the effect of setting speed
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Embodiment 1
[0022] Such as figure 1 As shown, the present embodiment provides a construction method for foam concrete road and bridge filling, comprising the following steps:
[0023] Step 1: Drive a number of pile foundations 1 between the bridge 2 and the subgrade 3, and then install the abutment 4 on the top of all the pile foundations 1, so that the abutment 4 separates the bridge 2 from the subgrade 3, and the abutment 4 and the subgrade 3 filling pits are formed between them;
[0024] Step 2: Stack the prefabricated block foam concrete 5 in layers in the filling pit. After each layer of foam concrete 5 is laid, sprinkle some filling materials until the foam concrete 5 and the filling material cover the filling pit, and finally A road layer 6 is laid on the surface of the bridge 2 and the roadbed 3 .
[0025] The filling material is one or more of gravel soil, graded sand and clay.
[0026] In this embodiment, when filling the foamed concrete at the junction between the bridge and...
Embodiment 2
[0028] This example is further optimized on the basis of Example 1. Specifically, the raw material formula of foam concrete 5 is as follows by mass: 100-250 parts of geopolymer cement, 1.0-1.5 parts of water reducing agent, 4 parts of early strength agent ~5 parts, 3~5 parts of admixture, 2~4 parts of fiber, 15~20 parts of foaming agent, 30~60 parts of ultrafine slag powder, 10~12 parts of gel material, 1~3 parts of diatom mud, 80-130 parts of water, the admixture contains the following components by mass: 7-10 parts of calcium oxide, 18-22 parts of iron oxide, 25-30 parts of magnesium oxide, 0.5-1 part of butyl phosphate, 5-10 parts of polyurethane , 7-10 parts of sodium nitrite, 3-5 parts of silane coupling agent, 4-6 parts of polyvinylpyrrolidone, 3-4 parts of silicon carbide, and the foaming agent contains the following components by mass: 3-7 parts of limestone powder , 3-8 parts of slag, 6-9 parts of modified diatomite, 7-12 parts of polyacrylic resin, 3-6 parts of polye...
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