CRUDE MIXTURE FOR PRODUCING CELLULAR MATERIALS AND PREPARATION METHOD THEREOF Russian patent published in 2011 - IPC C04B38/02 B82B1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials, and specifically to compositions and methods of producing heat insulating cellular materials. The crude mixture for producing cellular materials contains the following in wt %: portland cement 500 40-45, aggregate - ground expanded clay with particle size 0-5 mm or quartz sand with M_gr 1.8-2.0 32, foaming agent PB-2000 2, polymer fibre with diameter 20-50 mcm and length 3-18 mm or basalt fibre with diameter 13-17 mcm and length 6-12 mm 3-10, super-plasticiser Sika ViscoCrete-3 0.2, multilayer carbon nanotubes with diameter 8-40 nm and length 2-50 mcm 0.4, water - the rest. The method of preparing said crude mixture involves pretreatment of the said super-plasticiser with water and said nanotubes for 30-60 seconds in an ultrasonic dispersion machine with frequency 20 kHz, mixing the obtained suspension with portland cement 500, aggregate, foaming agent PB-2000 and fibre for 5-6 minutes in a mixer.

EFFECT: high compression and tensile strength, high strength-weight ratio and efficiency of the process of preparing the crude mixture.

2 cl, 1 tbl