A. Lightweight plastering gypsum: price 1 100 yuan/ton, construction thickness 8- 10mm, plasterable area1147m2; The material cost per square meter is 7.48-9.32 yuan;
Calculation method: one cubic meter of light plastering gypsum mortar,
According to the thickness of 8mm, the plasterable area is125m2.
According to the thickness of 10mm, the plasterable area is100m2.
One cubic meter of light plastering gypsum =0.85 tons;
That is, a ton of light plastering gypsum,
According to the thickness of 8mm, the plastering area can be 1 18 flat.
According to the thickness of 10mm, the plastering area can be 147 flat.
Traditional cement mortar (ready-mixed finished product): price 330 yuan/ton, construction thickness 15-20mm, plasterable area16.5-20m2; The material cost per square meter is 9.43- 12.69 yuan;
Calculation method: one cubic meter of cement mortar,
According to the thickness 15mm =67 square,
According to the thickness of 20mm =50 square,
A cubic meter of cement mortar is about 1.9 tons;
That is, one ton of cement mortar,
According to the thickness of 15mm, the plastering area can be 35 flat.
According to the thickness of 20mm, the plasterable area is about equal to 26 flat.
Special note: the above values are theoretical values.
B, the dosage of traditional cement mortar is 3-4 times that of light plastering gypsum;
Equivalent: the water and electricity cost of using traditional cement mortar in the project is 3-4 times higher than that of using light plastering gypsum; Take water consumption as an example: the mixing rate of one ton of materials is 65%, calculated according to the plastering area of 20 square meters; The dosage of lightweight bottom plastering gypsum (plastering thickness 10mm) is 2000 tons; The water consumption is about 1300 tons; The dosage of traditional cement mortar (plastering thickness 25mm) is 6000 tons; The water consumption is about 3900 tons;
Calculated according to the industrial water consumption of 2.37 yuan/ton in Changsha; 1300 tons ×2.37 yuan =308 1 yuan, 3,900 tons ×2.37 yuan = 9,243 yuan, which can save more than 6 162 yuan, plus at least 1 10,000 yuan for electricity.
Remarks: Traditional cement mortar needs a lot of water for later curing, and light plastering gypsum does not need water supply.