解读吴中伟“水泥基复合材料的中心质假说”

Clarification of a Hypothesis on‘Centroplasm of Cement-based Composite’Proposed by Wu Zhongwei

早在60年前,吴中伟就发表了“水泥基复合材料中心质假说”。不但在60年前,而且至今这个假说仍然是关于水泥基材料微结构很先进的理论。但是并没有在国内外传播开来,其主要原因是吾辈一直未能深刻理解。该假说创新之处为:打破了传统上水泥化学与混凝土化学的界限,把水泥混凝土考虑成一个具有层次性和开放性的整体系统;把中心质和介质之间的效应扩展为不仅有正效应而且也有负效应;将孔命名为负中心质,因为孔虽然是“空的”,但是孔对制品的某些性质是有利的。在该假说中还给出了数学模型的初步设想,对今后继续研究提供了启发。

A hypothesis on‘centroplasm of cement-based composite’was proposed by Wu Zhongwei 60 years ago.Although his hypothesis is rather advanced,it has not been clarified so far.The innovation of the hypothesis is to break the conventional boundaries between cement chemistry and concrete chemistry.In his hypothesis,concrete should be regarded as a holistic system with hierarchy and openness.Effect of interface between centroplasm and matrix is extended to be negative and positive.Pore is considered as a negative centroplasm although it is“empty”,thus being benefit to some properties of products.In addition,his hypothesis also gives the corresponding model and some further research aspects.