Unfired environment-friendly brick prepared from stripped soil in mine and preparation method of unfired environment-friendly brick
An environmentally friendly brick and mine technology, applied in sustainable waste treatment, solid waste management, climate sustainability, etc., can solve problems such as soil problems, high transportation costs, harm to the surrounding environment, etc., to achieve simple process flow, low cost, Suitable for promotion and application
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Embodiment 1
[0028] This embodiment provides a method for preparing non-burning environmentally friendly bricks using mine stripping soil, including the following steps:
[0029] Step S1, raw material preparation: Crushing the collected limestone and sieving to obtain coarse sand aggregate; mixing the prepared coarse sand aggregate with limestone mine stripping soil at a weight ratio of 1:4 to form sandy soil Mixture;
[0030] Step S2, ingredient batching: mix and age the sand-soil mixture, 42.5-grade Portland cement, and lime in a weight ratio of 20:3:2;
[0031] Step S3, mixing and stirring: put the raw materials into the cement mortar mixer, add 10wt% water, and stir for 3-5 minutes;
[0032] Step S4, compression molding: put the mixture in the mold, vibrate easily to make the surface of the mixture in the mold smooth, then put the mold into a constant pressure testing machine, set the compressive strength to 20MPa, and maintain a constant pressure 10s, after the end, take out the mol...
Embodiment 2
[0036] This embodiment provides a method for preparing non-burning environmentally friendly bricks using mine stripping soil, including the following steps:
[0037] Step S1, raw material preparation: crush the collected limestone and sieve to obtain coarse sand aggregate; mix the prepared coarse sand aggregate with limestone mine stripping soil at a weight ratio of 2:3 to form sandy soil Mixture;
[0038] Step S2, ingredient batching: mix and age the sand-soil mixture, 42.5-grade Portland cement, and lime in a weight ratio of 20:3:2;
[0039] Step S3, mixing and stirring: put the raw materials into the cement mortar mixer, add 10wt% water, and stir for 3-5 minutes;
[0040] Step S4, compression molding: put the mixture in the mold, vibrate easily to make the surface of the mixture in the mold smooth, then put the mold into a constant pressure testing machine, set the compressive strength to 20MPa, and maintain a constant pressure 10s, after the end, take out the mold and re...
Embodiment 3
[0044] This embodiment provides a method for preparing non-burning environmentally friendly bricks using mine stripping soil, including the following steps:
[0045] Step S1, raw material preparation: crush the collected limestone and sieve to obtain coarse sand aggregate; mix the prepared coarse sand aggregate with limestone mine stripped soil at a weight ratio of 3:2 to form sandy soil Mixture;
[0046] Step S2, ingredient batching: mix and age the sand-soil mixture, 42.5-grade Portland cement, and lime in a weight ratio of 20:3:2;
[0047] Step S3, mixing and stirring: put the raw materials into the cement mortar mixer, add 10wt% water, and stir for 3-5 minutes;
[0048] Step S4, compression molding: put the mixture in the mold, vibrate easily to make the surface of the mixture in the mold smooth, then put the mold into a constant pressure testing machine, set the compressive strength to 20MPa, and maintain a constant pressure 10s, after the end, take out the mold and rel...
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Abstract
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