Stock material or miscellaneous articles – Hollow or container type article – Glass – ceramic – or sintered – fused – fired – or calcined metal...
Patent
1989-03-21
1991-01-01
Dixon, Jr., William R.
Stock material or miscellaneous articles
Hollow or container type article
Glass, ceramic, or sintered, fused, fired, or calcined metal...
106627, 428 345, C04B 2836
Patent
active
049817400
ABSTRACT:
Acid resistant concrete articles, especially sulfur concrete pipes manufactured from a material formulated on the basis of a composition of portland cement concrete suitable for the manufacture of pipes by means of the dry casting method, the volume of portland cement, filler and water being replaced by a substantially equivalent volume of sulfur cement and filler, while the amount of other components remains substantially unchanged. The sulfur concrete pipes are manufactured by mixing the components of the material and adjusting the mixture to a temperature, where sulfur cement is liquid. At this temperature the mixture is cast while being subjected to vigorous vibration, using a casting mould preheated to a temperature of up to 160.degree. C. The cast pipes can be removed from the mould immediately after casting. After only 24 hours they have obtained sufficient strength for being delivered to a building site. Sulfur concrete pipes are most suitable in aggressive environments since they are resistant to acid and salt attacks.
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Dixon Jr. William R.
Idright Alan
KKKK A/S
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