| 摘要 |
<p>A core material for a composite light weight building panel formed from a settable mixture, said mixture including an acrylic, polymer-based resin comprising: 85 % by volume water based copolymer emulsion of polyvinyl acetate with versatate and/or acrylic copolymers in a water emulsion; 10 % water soluble colloid protector; 5 % additives; such that the resin obtains a specific gravity in the range of 1000 ± 50g/l and an 8 Ford viscosity at 20°C of 7 ± 1; and the mixture having the following ratios: from 1 to 3 litres of cement; more than 2 litres of resin; from 10 to 100 litres of light weight filler material; less than 6 kilograms of water, and such that the volume of cement is more than half the volume of resin.</p> |
