Roadbed filler for road and preparation method of roadbed filler
A technology for roadbed fillers and roads, which is applied to roads, roads, buildings, etc., can solve the problems of water stability not meeting the required requirements, occupying land resources, and low recycling rate, etc. Condensation, the effect of low porosity
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Embodiment 1~3
[0032] Lime in Examples 1 to 3: fly ash: phosphogypsum accounts for 6% by weight: 47%: 47%, the added stabilizer is water glass, the amount of addition, the 7 days and 28 days of the sample without confinement resistance The compressive strength and water stability tests are listed in Table 4 and Table 5 below:
[0033] Table 4: Strength test results of water glass as a stabilizer
[0034]
[0035] Table 5: Two dry-wet cycle test results of water glass as a stabilizer
[0036]
Embodiment 4~6
[0038] Lime in Examples 4-6: fly ash: phosphogypsum accounts for 6% by weight: 47%: 47%, and the added stabilizer is NaAlO 2 , 7-day and 28-day unconfined compressive strength and water stability test of the added amount, sample are listed in the following table 6 and table 7 respectively:
[0039] Table 6: NaAlO 2 Strength test results as a stabilizer
[0040]
[0041] Table 7: NaAlO 2 Results of two wet and dry cycles as a stabilizer
[0042]
[0043] From the data in Table 4 to Table 7, it can be seen that the water stability of the phosphogypsum-fly ash mixture added with stabilizers has been significantly improved, and it has fully reached the "Technical Specifications for Construction of Highway Pavement Base" (JTJ 034 -2000) on the compressive strength standard of lime industrial waste slag stabilized soil, which can be used as road subgrade filler.
Embodiment 7~9
[0045] Lime in Examples 7-9: fly ash: phosphogypsum percentage by weight is shown in Table 8, and the added stabilizer is NaAlO 2 , the 7-day and 28-day unconfined compressive strength and water stability test of the added amount, the sample are listed in the following table 8 and table 9 respectively:
[0046] Table 8: NaAlO 2 Strength test results as a stabilizer
[0047]
[0048] Table 9: NaAlO 2 Results of two wet and dry cycles as a stabilizer
[0049]
[0050] From the data in Table 8 to Table 9, it can be seen that the water stability of the phosphogypsum-fly ash mixture added with stabilizers has been significantly improved, and it has fully reached the "Technical Specifications for Construction of Highway Pavement Base" (JTJ 034 -2000) on the compressive strength standard of lime industrial waste slag stabilized soil, which can be used as road subgrade filler.
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