| 摘要 |
To obtain satisfactory operation of apparatus, e.g. of the Hatschek, Magnani or Bell Flow-on types, for making cement composite materials reinforced with glass fibres, using an aqueous slurry of cement, glass fibre, pulverised fuel ash, finely divided amorphous silica, cellulose pulp, flocculant and water which is deposited on a foraminous surface such as the drum of a Hatschek machine or the felt belt of a Magnani or Bell Flow-on machine, the apparatus is provided with means for controlling the temperature of the slurry before and during deposition on the foraminous surface. The temperature control means may comprise means (30 to 38) for heating and for cooling the water in a reservoir (24) which supplies a slurry mixer (10). |
