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美国2000年的混凝土和混凝土建筑将与今天明显不同。混凝土混合料的性能将用“均匀性”而不是用“易变性”字眼来讨论。ASTMC-94可能仍然是预拌混凝土的官方标准,但将成为一项最低要求的标准。将浇筑尺寸公差极小的混凝土,以满足生产轻质、节能非填充性构件模数的要求,这种构件安装时是用结构胶粘剂予以固定的。除建筑官方记录之外,今天的28天强度将成为
The concrete and concrete buildings in the United States in 2000 will be significantly different from today. The performance of the concrete mix will be discussed in terms of “uniformity” rather than “variability”. ASTMC-94 may still be the official standard for ready-mixed concrete, but will be a minimum required standard. Concrete with very tight dimensional tolerances will be cast to meet the requirements for the production of lightweight, energy-saving, non-filled structural modules that are fixed with a structural adhesive. In addition to the official records of the building, today’s 28-day intensity will become