Laterite granular material mixed with gravel and its preparation method
A technology of laterite granules and preparation methods, which is applied in roads, road repairs, roads, etc., can solve the problems of large differences in properties of natural laterite granules, incomplete performance, and CBR values of laterite granules that cannot meet the specification requirements. Achieve high engineering application value, good economic benefits, and improve the effect of poor gradation
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Embodiment 1
[0053] The laterite aggregates from the Babo road section in Equatorial Guinea and the unscreened crushed stone produced by the rock rolling field were selected as raw materials, and their material properties are shown in Table 1 and Table 2 below, respectively.
[0054] Table 1 Screening results of laterite aggregates in Babo road section
[0055] Mesh size(mm)
31.5
9.5
4.75
2.36
1.18
0.6
0.3
0.15
0.075
Natural Grading Passed (%)
100
87
54
36
33
32
31
29
27
Compaction grading passed (%)
100
93
78
54
42
39
35
31
30
[0056] Table 2 Screening results of unscreened gravel in Babo road section
[0057] Mesh size(mm)
31.5
19
9.5
4.75
2.36
0.6
0.075
Passing rate(%)
100
71.2
37.5
19.1
10.2
4.2
1.2
[0058] It can be obtained from the natural gradation and gradation after compaction of natural laterite granules. T...
Embodiment 2
[0063] The laterite aggregates from the Bindong road section in Equatorial Guinea and the unscreened gravel produced by the rock rolling field were selected as raw materials, and their material properties are shown in Table 3 and Table 4 below, respectively.
[0064] Table 3 Screening results of laterite aggregates in Bindong road section
[0065]
[0066] Table 4 Screening results of unscreened gravel in Bindong road section
[0067]
[0068] The natural gradation and gradation after compaction of natural laterite pellets can be obtained. The mixing amount of primary gravel is selected as 2%, 4%, 6%, and 8%, and the primary mixture is prepared by mixing, and 5 groups of test materials are prepared 3 different parallel test pieces were taken for each group of test pieces; after that, the second-level mixture was prepared with the third group of granules, and 5 sets of test pieces were prepared, and 3 different parallel test pieces were taken for each group of test pieces...
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