FIELD: chemistry.
SUBSTANCE: invention relates to production of construction materials and can be used for the production of wall blocks with strength class from B2.5 to B7.5. A composite construction material includes Portland cement M400 as a binding agent, crushed waste moulding mixture (WMM) with an optimally selected fraction composition (2.5 mm fraction - 77%, 1.25-0.63 mm fraction - 5%, 0.315-0.14 mm fraction - 18%) as a filling agent, water, a superplastisiser C-3 as a plastisising additive, microsilica as a highly active mineral additive, with the following ratio, wt %: Portland cement M400 13.5-22.7; crushed WMM 66.6-81.0; water 5.4-13.3; superplastisiser C-3, % of cement weight, 0.3; microsilica, % of cement weight, 10.
EFFECT: technical result consists in the increased strength and frost resistance, reduction of water absorption.
| Title | Year | Author | Number |
|---|---|---|---|
| DRY ADHESIVE CEMENT-BASED MIXTURE | 2015 |
|
RU2602458C2 |
| CRUDE MIXTURE FOR PRODUCING FINE-GRAINED POLYMER CONCRETE, MODIFIED WITH MICROSILICE | 2019 |
|
RU2711169C1 |
| METHOD OF PRODUCING DRY CONSTRUCTION MIXTURE FOR MAKING FOAM CONCRETE AND COMPOSITION THEREOF | 2012 |
|
RU2488570C1 |
| CONCRETE MIXTURE COMPOSITION FOR PRODUCING HIGH-STRENGTH SHOTCRETE BY WET-MIX METHOD | 2016 |
|
RU2658076C2 |
| METHOD OF PRODUCTION OF ITEMS OUT OF A CONCRETE MIXTURE | 2003 |
|
RU2254987C1 |
| CONCRETE MIXTURE | 2009 |
|
RU2439020C2 |
| HIGH STRENGTH SELF-COMPACTING FINE GRAIN CONCRETE | 2022 |
|
RU2796782C1 |
| CONCRETE MIX | 0 |
|
SU1813760A1 |
| CONCRETE COMPOSITION | 1999 |
|
RU2152914C1 |
| METHOD OF DRY CONSTRUCTION MIXTURE PRODUCTION FOR FOAM CONCRETE AND MIXTURE PRODUCED BY RELATED METHOD | 2008 |
|
RU2376266C1 |
