RU2592270C1 - Concrete mix - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to industry of construction materials. Concrete mix contains the following in wt%: portland cement 20.0-25.0; fine aggregate 58.2-63.4; polypropylene pipes 0.8-3.2 sliced into rings and/or semi-rings with thickness 3±1 mm; superplasticiser S-3 0.8-1.6; water 12.0-15.0.

EFFECT: high concrete strength.

1 cl, 1 tbl

Description

The invention relates to the construction materials industry.

Known concrete mixture, including, parts by weight: Portland cement 1.0; fine aggregate (ash and slag) 3.6-9.7; shredded plastic (polyethylene foam) 0.024-0.009; water 0.6-1.1 [1].

The objective of the invention is to increase the strength of concrete.

The technical result is achieved by the fact that the concrete mixture, including Portland cement, fine aggregate, shredded plastic, water, contains 3–1 mm thick polypropylene pipes cut into rings and / or half rings as a crushed plastic and, in addition, C-3 superplasticizer, in the following ratio of components , wt.%: Portland cement 20.0-25.0; fine aggregate 58.2-63.4; polypropylene pipes 0.8-3.2 cut into rings and / or half rings with a thickness of 3 ± 1 mm; superplasticizer C-3 0.8-1.6; water 12.0-15.0.

The compositions of the concrete mixture are shown in the table.

Spent, defective polypropylene pipes (for water supply) or their scraps are cut into rings and / or half rings. The thickness of the rings or half rings is 3 ± 1 mm.

To prepare the concrete mixture, raw materials are prepared and dosed. Portland cement (M500), fine aggregate, cut into 3 ± 1 mm thick rings and / or half rings, the polypropylene pipes are mixed, water, C-3 superplasticizer (obtained from the condensation products of naphthalenesulfonic acid and formaldehyde [2]) are added and mixed again. The resulting concrete mixture is placed in metal (pre-lubricated with machine oil) molds and left to solidify. Then the products are removed from the molds and transported to the finished goods warehouse.

Information sources

1. RU No. 2083523, 1997.

2. Afanasyev A.A. Concrete works. - M .: Higher. Shk., 1991 .-- S. 29-30.

Claims (1)

Concrete mixture, including Portland cement, fine aggregate, crushed plastic, water, characterized in that as crushed plastic contains polypropylene pipes cut into rings and / or half rings with a thickness of 3 ± 1 mm and, in addition, C-3 superplasticizer, in the following ratio of components, wt .%: Portland cement 20.0-25.0; fine aggregate 58.2-63.4; polypropylene pipes 0.8-3.2 cut into rings and / or half rings with a thickness of 3 ± 1 mm; superplasticizer C-3 0.8-1.6; water 12.0-15.0.