FIELD: manufacture of building materials. SUBSTANCE: invention relates to pipe insulation field and building industry and can be used for insulating steel pipes for heating conduits with diameter from 57 to 1420 mm and for various building tasks. Method is characterized by that to sludge are added: ground quartz sand with specific surface at least 2900 sq/cm/g, special-type cement, and blowing agent, after which mortar is powered into molds preferably by the use of pumps. In particular, sludge is first dispensed at 15-30 C by means of periodical dispenser, agitated for 1-5 min, after which blowing agent is added and agitation is continued for further 3-8 min. Weight ratio of cement to sand varies from 0.6:1.4 to 1.4:0.6, and water to solids ratio is (0.4-0.8):1. EFFECT: Improved workability of concrete mortar and characteristics of concrete. 2 cl
| Title | Year | Author | Number |
|---|---|---|---|
| LINE FOR PRODUCTION OF SUPERLIGHT FOAM CONCRETE | 1999 |
|
RU2136490C1 |
| METHOD OF PRODUCING FOAM CONCRETE | 2018 |
|
RU2710061C1 |
| PIPE WATER-PROOFING LINE | 1999 |
|
RU2143633C1 |
| AUTOCLAVE FOAMED CONCRETE MIXTURE | 2009 |
|
RU2394796C1 |
| FOAM CONCRETE MIX AND METHOD OF PREPARATION OF SUCH MIX | 2005 |
|
RU2292322C1 |
| METHOD FOR PRODUCTION OF AUTOCLAVE-FREE ORGANIC-INORGANIC ESPECIALLY LIGHT CONCRETE | 2006 |
|
RU2351574C2 |
| METHOD OF APPLYING RETURN SLUDGE TO OBTAIN RAW MIXTURE IN PRODUCTION OF AUTOCLAVED CELLULAR CONCRETE | 2023 |
|
RU2804062C1 |
| COMPOSITION FOR MAKING COMPOSITE FOAMED POLYSTYRENE CONCRETE AND METHOD OF MAKING SAID COMPOSITION | 2010 |
|
RU2447040C2 |
| CRUDE MIXTURE FOR PRODUCTION OF NON-AUTOCLAVE FOAM CONCRETE | 2018 |
|
RU2712883C1 |
| METHOD OF DRY CONSTRUCTION MIXTURE PRODUCTION FOR FOAM CONCRETE AND MIXTURE PRODUCED BY RELATED METHOD | 2008 |
|
RU2376266C1 |
