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US 6,616,874 B1Granted
Method for forming a reflective concrete block
OwnerMichael Lazarinventor
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Abstract
A method forms a concrete block, particularly but not exclusively a composite block with a reflective fascia portion. The block is formed by a dry-cast technique, in which mixture for forming the block has a water/cement ratio less than or equal to 0.35, in combination with application of a compaction force so that the resultant block complies with compressive strength requirements set out in BS 6717: part 1: 1993.
Claims13
A dry casting method for forming a concrete block having a reflective fascia portion comprising the steps of:
- preparing a base mix with a water/cement ratio less than or substantially equal to 0.35;
- pouring the base mix into a mould;
- pouring a dry fascia mix into the mould, said dry fascia mix having a water-cement ratio of between 0.28 to 0.35;
- pressurizing both the base mix and fascia mix simultaneously with a compaction force, whereby both the base mix and the fascia mix are pressurized during the step of pressurizing;
- and
- providing a reflective material in the fascia mix.
3 more elements
Dependencies are inferred from the claim text.