Page 510 - New Trends in Eco efficient and Recycled Concrete
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460                               New Trends in Eco-efficient and Recycled Concrete






























         Figure 15.5 Components of mixed recycled aggregate.























         Figure 15.6 Phases in (A) conventional concrete; and (B) recycled concrete aggregate
         concrete.

         15.3.2.1 Conventional concrete
         Table 15.1 summarises the parameters used in the meso-structural models for con-
         ventional concrete.
           Huang et al. (2015) developed a finite elements model based on X-ray computed
         tomographic (XCT) imaging to assess crack initiation and propagation in a cubic
         concrete specimen compression-tested to failure. Their study showed that the joint
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