Baking-free pavior brick and preparation method thereof

[0050] A kind of preparation method of unfired pavement brick provided on the one hand, the preparation method of described unfired pavement brick comprises the steps:

[0051] Step (1): Prepare blank

[0052] Take fly ash, waste pottery clay, silica fume, sodium metaaluminate, air-floated algae residue, binder and gelling agent according to the parts by weight, mix the materials and add 12-15% by weight of water and stir evenly, after 2-3 Obtain blanks for pressure forming after hours of blanking;

[0053] Step (2): Body forming

[0054] The above-mentioned uniformly mixed and trapped blank is formed into a green body with a hydraulic press, the forming pressure of the green body is 41-47MPa, and the pressurization rate is 7KN / s;

[0055] Step (3): Preparation of product

[0056] After forming, the body is cured in a curing room with a temperature of 25±1°C and a humidity of 80±1% for 29 days, and then dried naturally at room temperature to obtain a finished brick.

[0057

[0068] One aspect of this embodiment provides a burn-free pavement brick, which includes the following components in parts by weight: 15 parts of fly ash, 30 parts of waste clay, 9.2 parts of silicon powder, 2 parts of sodium metaaluminate 9 parts, 9 parts of air floating algae residue, 0.03 part of binder and 0.18 part of gelling agent.

[0069] The fineness of the waste clay is 120-180 mesh.

[0070] The gelling agent is a gelling material.

[0071] The fineness of the silicon powder is 180-200 mesh.

[0072] The pretreatment method of described waste clay is:

[0073] (1) Recycling, pre-selecting, purifying, storing and air-drying the discarded pottery clay to constant weight;

[0074] (2) Perform petrographic analysis on the discarded pottery clay obtained in step (1);

[0075] (3) Conduct a fineness test on the discarded pottery clay obtained in step (2).

[0076] A kind of preparation method of unfired pavement brick provided on the one hand, the preparation method of

[0084] One aspect of this embodiment provides a non-burning pavement brick, which includes the following components in parts by weight: 10 parts of fly ash, 47 parts of waste clay, 6.5 parts of silicon powder, and 6 parts of sodium metaaluminate. 4 parts, 4 parts of air floating algae residue, 2.7 parts of binder and 0.02 part of gelling agent.

[0085] The fineness of the waste clay is 120-180 mesh.

[0086] The gelling agent is a gelling material.

[0087] The fineness of the silicon powder is 180-200 mesh.

[0088] The pretreatment method of described waste clay is:

[0089] (1) Recycling, pre-selecting, purifying, storing and air-drying the discarded pottery clay to constant weight;

[0090] (2) Perform petrographic analysis on the discarded pottery clay obtained in step (1);

[0091] (3) Conduct a fineness test on the discarded pottery clay obtained in step (2).

[0092] A kind of preparation method of unfired pavement brick provided on the one hand, the preparation met