It is most important to research into the local pressure for high-strength concrete.

因此，对于高强砼局部承压问题的研究是十分重要的。

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P The following clauses give principles and rules for normal and high strength concrete.

下述条款给出了普通和高强度混凝土的原理和规定。

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Expressing the high strength concrete cube strength size effect differs from the common concrete.

表明高强混凝土立方强度尺寸效应不同于普通混凝土。

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Another study, published back in 1995, showed that although the compressive strength of concrete was enhanced only slightly by the addition of polymer fibres, its impact resistance improved sevenfold.

ECONOMIST: Bunker-busting

And even though steel and concrete are still the most cost-effective materials, new combinations of these substances provide greater strength and fire retardance, says W. Gene Corley, senior vice president at Construction Technology Laboratories in Skokie, Ill.

FORBES: They Will Rise Again