1. Light weight than other building material 2. Raw-material-Straw.

The light weight compound sandwich Wall Panel is a kind of light weight energy saving compound board material taking fibre reinforced calcium silicon board or cement calcium silicon board as panel, with cement, EPS, fly ash as fillers and forming by one time compound. The product can replace construction materials as red brick, clay solid brick, air brick, color-coated steel sandwich board, gypsum block, wire spatial grid structure perlite board, perlite porous board etc. It can widely be apllied to wall materials of various high and low buildings such as: bank, office building, hospital, school, hotel, mall, amusement hall, active barrack, old house reconstruction, residence and workshop.

Characteristics: Energy-saving, lightweight, and environmental protection Polyphenyl granule in Vanjoin board has good heat-insulation effect and heat lost ratio is far below the other brick wall building Energy-saving effects of the building is greatly improved Raw materials do not include harmful substances Environmental products, it is highly recommended by the government Capacity: 650kg/m3, just one sixth of the brick building Comparison of inner wall panel 75 and 120mm it will increase 12m practical area, for 100m2 house, it will increase 4.16m2 Waterproof and damp resistant With fireproof feature Applications: Can replace construction materials as red bricks, clay solid bricks, air bricks, color-coated steel sandwich boards, gypsum blocks, wire spatial grid structure perlite boards, and perlite porous board Can widely be applied to wall materials of various high and low buildings such as banks, office buildings, hospitals, schools, hotels, malls, amusement halls, active barracks, old houses reconstruction, residences, and workshops Performance Index:

NO.	Item	National Standards			Testing Indexes
		60mm	90mm	120mm	60mm	90mm	120mm
1	/ Anti-impact Capacity/times	≥5	≥5	≥5	≥8	≥10	≥15
2	/ Anti-bending damageload/times over deadweight	≥1.5	≥1.5	≥1.5	≥3	≥4	≥5
3	/Mpa Compressive strength /Mpa	≥3.5	≥3.5	≥3.5	≥5	≥5	≥5
4	Softening coefficient	≥0.80	≥0.80	≥0.80	≥1	≥1	≥1
5	/Kg/ Surface density g/	≤70	≤90	≤110	≤55	≤70	≤85
6	a/% Moisture rate  a/%	≤12/10/8			≤10/9/7
7	/mm/m Drying shrinkage value /mm/m	≤0.6	≤0.6	≤0.6	≤0.45	≤.0.5	≤0.5
8	/N Drying shrinkage value /mm/m	≥1000	≥1000	≥1000	≥1200	≥1300	≥1500
9	/Db Sound insulation capacity in the air /Db	≥30	≥35	≥40	≥35	≥40	≥45
10	/h Fire proof limit /h	≥1	≥1	≥1	≥2.5	≥3	≥4
11	b/w/.k Heat transfer coefficient  b/w/.			≤1.0			≤1.0
12	Radioactivity Limit	≤1	≤1	≤1	≤1	≤1	≤1
13	IRa IRa Inner radiation indexes	≤1	≤1	≤1	≤1	≤1	≤1
14	Ir Ir Outer radiation indexes	≤1	≤1	≤1	≤1	≤1	≤1