Recycled wet-mixed mortar and preparation method thereof
A wet-mixed mortar and regenerated fine aggregate technology, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of increasing drying links, unfavorable energy saving and environmental protection, and large dust pollution, and achieve improvement The state of the mixture, the effect of great social significance and high economic benefits
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[0042] Example 1
[0043] (1) Weigh a certain amount of raw materials according to the mixing ratio shown in Table 1:
[0044] Table 1 Mix ratio of recycled wet mixed mortar (unit: kg)
[0045]
[0046] (2) The weighed cement, limestone powder slurry, recycled fine aggregate and natural sand are pre-mixed in a mixer for 60s, then water-retaining thickener, setting time regulator and water are added, and the forced mixing is continued for 120s.
[0047] (3) Take a certain amount of wet-mixed mortar for the test, and test its performance indicators as shown in Table 2:
[0048] Table 2 Performance index test results of wet-mixed mortar
[0049]
[0050]
[0051] From the results shown in Table 2, it can be seen that the recycled wet-mixed mortar meets the M5 strength level requirements, and the performance indicators meet the requirements of the wet-mixed mortar in the "Ready-mixed Mortar" GB / T25181-2010. It can be used for masonry and plastering.
Example Embodiment
[0052] Example 2
[0053] (1) Weigh a certain amount of raw materials according to the mixing ratio shown in Table 3:
[0054] Table 3 Mixing ratio of recycled wet mixed mortar (unit: kg)
[0055]
[0056] (2) The weighed cement, limestone powder slurry, recycled fine aggregate and natural sand are pre-mixed in a mixer for 80s, and then the water retention thickener and setting time regulator water are added, and the forced mixing is continued for 150s.
[0057] (3) Take a certain amount of wet-mix mortar for the test, and test its performance indicators as shown in Table 4:
[0058] Table 4 Performance index test results of wet-mixed mortar
[0059]
[0060] From the results shown in Table 4, it can be seen that the recycled wet-mixed mortar meets the M15 strength level requirements, and the performance indicators meet the requirements of the wet-mixed mortar in the "Ready-Mixed Mortar" GB / T25181-2010. It can be used for masonry and plastering.
Example Embodiment
[0061] Example 3
[0062] (1) Weigh a certain amount of raw materials according to the mixing ratio shown in Table 5:
[0063] Table 5 Mix ratio of recycled wet mixed mortar (unit: kg)
[0064]
[0065] (2) The weighed cement, limestone powder slurry, recycled fine aggregate and natural sand are pre-mixed in a mixer for 60s, then water-retaining thickener, setting time regulator and water are added, and the forced mixing is continued for 120s.
[0066] (3) Take a certain amount of wet-mix mortar for the test, and test its performance indicators as shown in Table 6:
[0067] Table 6 Test results of wet-mixed mortar performance indicators
[0068]
[0069] From the results shown in Table 6, it can be seen that the recycled wet-mixed mortar meets the M10 strength level requirements, and the performance indicators meet the requirements of the wet-mixed mortar in the "Ready-mixed Mortar" GB / T25181-2010. It can be used for masonry and plastering.
[0070] A person of ordinary skill in the art ...
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