METHOD FOR MAKING BUILDING BLOCKS Russian patent published in 2021 - IPC C04B38/10 C04B40/02 

FIELD: industrial production.

SUBSTANCE: invention relates to the industrial production of building materials and can be used in the manufacture of building blocks for the construction of low-rise buildings and cottages. The method for manufacturing building blocks includes mixing the components in three stages: at the first stage, the hardening accelerator is combined with a foaming agent and stirred for 20 to 30 minutes, at the second stage, the resulting solution is combined with pre-dried at a temperature of 60 to 70°С for 15 up to 20 minutes and crushed to a particle size of 3.0 to 5.0 mm with sunflower baskets-inflorescences and incubated for 40 to 50 minutes with continuous stirring, at the third stage, the resulting mixture is combined with a mixture of binder, rice husk and mineral filler and mixed for 10 to 15 minutes, molding, hardening and drying, with the following ratio of components, wt.%: binder 35.6-37.0, rice husk 24.0–26.2, mineral filler 3.2–3.5, hardening accelerator 0.9–1.1, crushed sunflower inflorescence baskets 29.6–31.3, foaming agent 3.1–4.5. The invention is developed in the dependent claims.

EFFECT: increase in average density, increase in compressive strength and flexural strength of building blocks.

5 cl, 1 tbl, 3 ex