| 摘要 |
The present invention provides a method of making quality, homogenous mixtures such as concrete without premixing the separate ingredients. In the example of concrete, the ingredients of cement, gravel, sand and water are metered and delivered to the use point separately using separate delivery means such as separate pneumatic hoses. The flow or delivery rate of each ingredient is measured and separately controlled, and the outputs of the individual delivery means meet at the common use point simultaneously where the concrete is to be laid down. The ratio of the ingredients may be adjusted to tailor the mix for particular applications. The ingredients meet and mix for the first time at the use point, and no premixing is performed.
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