Concrete design towards complete recycling
Concrete design towards complete recycling
复制标题
实现完全回收的具体设计
DOI：
10.1680/stco.2001.2.3.155
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发表时间：
2001
影响因子：
3.2
通讯作者：
M. Tamura
中科院分区：
文献类型：
--
作者：
T. Noguchi;M. Tamura
适合完全回收的混凝土将允许重复回收，就像钢和铝一样。由于这些混凝土仅由胶凝材料组成，并且在再生骨料生产过程中产生的粉末可以作为水泥资源进行再加工，这允许重复回收。这使得混凝土能够在全封闭系统中回收，从而减少水泥煅烧过程中排放的二氧化碳。为了允许从拆除的混凝土中回收高质量的再生骨料，混凝土应使用涂层的原始骨料。涂层剂将具有降低骨料与浆体之间的粘结强度的效果，但不会达到使混凝土的机械性能显著劣化的程度。通过试验研究了集料回收型再生混凝土的基本性能和从混凝土中回收的再生集料的性能。结果显示，Demo…
Concrete which is suitable for complete recycling will allow repeated recycling, as is the case for steel and aluminum. Since these concretes are composed only of cementitious materials, and the powders generated during the production of recycled aggregate can be reprocessed as cement resources, this permits repeated recycling. This enables concrete to be recycled in a fully closed system, thus reducing the carbon dioxide emitted during the calcining of cement. To permit recovery of high-quality recycled aggregates from demolished concrete, the concrete should be made with coated virgin aggregate. The coating agent will have the effect of decreasing adhesive strength between aggregate and paste, but not to the extent that the mechanical properties of the concrete will significantly deteriorate. The fundamental properties of the aggregate-recovery-type recycling-oriented concrete and the properties of recycled aggregates recovered from concrete were investigated experimentally. The results showed that demo...