Composite modified cement stabilized regenerative aggregate base mixture and preparation method thereof
A composite modified and recycled aggregate technology, applied in the field of road engineering materials, can solve problems such as hindering urban beauty and occupying land, and achieve the effects of improving temperature shrinkage and frost resistance, low price and excellent performance.
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Embodiment 1
[0035] Example 1 A composite modified cement-stabilized recycled aggregate base compound mixed with fiber and rubber is made of the following raw materials in parts by weight: 100 parts of aggregate, 5 parts of cement, 0.25 parts of composite modified material, and 0.5 parts of rubber parts, basalt fiber 0.1 part, purified water 6.2 parts. The aggregates include 45 parts of recycled aggregates and 55 parts of natural aggregates, wherein the natural aggregates are composed of crushed stones and ordinary river sand. The specific composition of the aggregates is shown in Table 2 below, consisting of natural aggregates, The gradation composition of the recycled aggregate-based mixture composed of recycled aggregate meets the standard of C-A-1 in Table 1 of the recommended gradation; the composite modified material contains 0.175 parts of diatomite and 0.075 parts of nano-calcium carbonate.
[0036] Table 2 Composition of aggregates
[0037] .
Embodiment 2
[0038] Example 2 A composite modified cement-stabilized recycled aggregate base compound mixed with fiber and rubber is made from the following raw materials in parts by weight: 100 parts of aggregate, 5 parts of cement, 0.25 parts of composite modified material, and 0.7 parts of rubber parts, basalt fiber 0.1 part, purified water 6.2 parts. The aggregates include 45 parts of recycled aggregates and 55 parts of natural aggregates, wherein the natural aggregates are composed of continuous graded crushed stones and ordinary river sand, and the composition of the continuous graded crushed stones is shown in Table 3 below, consisting of The gradation composition of the recycled aggregate grass-roots mixture composed of natural aggregate and recycled aggregate meets the standard of C-A-1 in Table 1 of the recommended grading; the composite modified material contains 0.175 parts of diatomite and 0.075 parts of nano-calcium carbonate .
[0039] Table 3 Composition of aggregates
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Embodiment 3
[0041]Example 3 A composite modified cement-stabilized recycled aggregate base compound mixed with fiber and rubber is made of the following raw materials in parts by weight: 100 parts of aggregate, 5 parts of cement, 0.25 parts of composite modified material, and 0.5 parts of rubber parts, basalt fiber 0.12 parts, purified water 6.2 parts. The aggregates include 45 parts of recycled aggregates and 55 parts of natural aggregates, wherein the natural aggregates are composed of continuous graded crushed stones and ordinary river sand, and the composition of the continuous graded crushed stones is shown in Table 4 below, consisting of The gradation composition of the recycled aggregate grass-roots mixture composed of natural aggregate and recycled aggregate meets the standard of C-A-1 in Table 1 of the recommended grading; the composite modified material contains 0.175 parts of diatomite and 0.075 parts of nano-calcium carbonate .
[0042] Table 4 Composition of aggregates
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