▎ 摘 要
NOVELTY - Producing conductive exothermic concrete containing graphene, comprises (a) preparing aggregate containing granite soil 30-40 wt.% and 100 wt.% concrete, (b) producing supplementary material containing 3-7 wt.% red clay, 3-6 wt.% limestone powder, 10-20 wt.% cement, 5-7 wt.% slag powder and 20-40 wt.% water, (c) preparing graphene solution containing 0.1-6 wt.% graphene solution and 100 wt.% concrete, (d) preparing mineral adhesion material containing 3-7 wt.% mineral adhesive material and 100 wt.% concrete. USE - The method is useful for producing conductive exothermic concrete containing graphene (claimed). ADVANTAGE - The method improves thermal storage, stability, and electrical conductivity of soil component, and is environmentally friendly. DETAILED DESCRIPTION - Producing conductive exothermic concrete containing graphene, comprises (a) preparing aggregate containing 30-40 wt.% granite soil aggregate and 100 wt.% concrete, (b) producing supplementary material containing 3-7 wt.% red clay, 3-6 wt.% limestone powder, 10-20 wt.% cement, 5-7 wt.% slag powder and 20-40 wt.% water, (c) preparing graphene solution containing 0.1-6 wt.% graphene solution and 100 wt.% concrete, (d) preparing mineral adhesion material containing 3-7 wt.% mineral adhesive material and 100 wt.% concrete, and (e) mixing granite soil aggregate, red clay, limestone powder, cement, slag powder, water, graphene solution and mineral adhesion material. The graphene solution is obtained by (i) heating 50 ml sulfuric acid, 10 g potassium sulfide and 10 g phosphorus pentoxide at 90 degrees C using heating bath, and dissolved by stirring, (ii) cooling at 80 degrees C, reacting by adding 12 g graphite for 4-5 hours, diluting with 2 l distilled water, and stirring for 12 hours, (iii) extracting 0.2 mu m diluted solution by using nylon filter, and filtering graphite from the solution ,(iv) placing the extracted solution under thermostatic chamber at 0 degrees C in 2 l beaker, preprocessing by adding rough graphene and 460 ml sulfuric acid into beaker, and stirring, (v) adding 60 g potassium permanganate stirred until completely dissolved at 35 degrees C under thermostat for 2 hours, (vi) adding 920 ml and 20-30 ml distilled water stirred at 40-50 degrees C for 2 hours, diluting with 2.8 l water for 3 hours, (vii) adding 20-30 wt.% hydrogen peroxide, and 1:2 volume ratio of hydrogen chloride with water under pH of 5-7.