SULPHUR CONCRETE COMPOSITION Russian patent published in 2012 - IPC C04B28/36 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and can be used in building underground structures - piles, foundations, supporting walls, enclosing structures of tunnels, roofing articles; road surface edge stones, paving slabs, overflow launders, as well as slabs, flooring, ledger boards, beams, trusses, arches, frames, decorative and art articles - monument and bas-reliefs. The sulphur concrete composition contains binder - elementary sulphur and a modifier, as well as an aggregate based on sludge from municipal water treatment facilities, which is first annealed at temperature 200°C and ground to particle size smaller than 0.15 mm, and the modifier is aluminium oxide powder with particle size 64-73 nm, with the following ratio of components (wt %): elementary sulphur 20-60, aluminium oxide 1.2-2.2, said sludge from municipal water treatment facilities 38.2-77.8.

EFFECT: recycling production wastes and obtaining concrete with low open porosity and given density and strength.

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