Construction and demolition (C&D) activities generate large amounts of waste, such as ceramic tile demolition waste (CTDW). However, the recycling ratio of C&D waste is generally of 3–10%. In this work, pastes with 0–30 wt% replacement of Portland cement by CTDW and limestone (reference filler) were produced. The particle packing, fresh-state properties (mini slump and rheometry), cement hydration (isothermal calorimetry and in situ X-ray diffraction – XRD) and compressive strength of the pastes were evaluated. The results showed that CTDW incorporation reduced the inter particle distance of the system while limestone increased it. Consequently, CTDW incorporation progressively increased the static yield stress and viscosity of paste while reducing the mini slump. CTDW enhanced the cement hydration kinetics compared with limestone, increasing the main heat flow peak, 24- and 168-h cumulative heat values by up to 8%, 5% and 6%, respectively, for the same incorporation level. Furthermore, in situ XRD and calorimetry indicated equivalent hydration for CTDW and limestone incorporation up to 8 h, from which the residue led to further alite consumption and hydrates formation (i.e. ettringite and portlandite). Compressive strength results at 1 and 7 days had good agreement with the cumulative heat values, indicating that CTDW led to strengths up to 5% higher than limestone did for the same replacement level and age. No significant pozzolanic reaction by CTDW was observed up to 7 days.

建筑和拆除（C＆D）活动会产生大量废物，例如瓷砖拆除废物（CTDW）。但是，拆建废物的回收利用率通常为3-10％。在这项工作中，生产出了用CTDW和石灰石（参考填料）替代波特兰水泥0–30 wt％的浆料。颗粒堆积，新鲜状态特性（小坍落度和流变学），水泥水化（等温量热法和原位评估了X射线衍射– XRD）和糊的抗压强度。结果表明，CTDW掺入减少了系统之间的粒子间距离，而石灰石增加了该距离。因此，掺入CTDW逐渐增加了浆料的静态屈服应力和粘度，同时降低了最小坍落度。与石灰石相比，CTDW增强了水泥的水化动力学，在相同的掺入水平下，主热流峰，24小时和168小时累积热值分别增加了8％，5％和6％。此外，就地XRD和量热法表明，掺入CTDW和石灰石的水化作用长达8小时，由此残留物会导致进一步消耗胶石和形成水合物（即钙矾石和硅酸盐）。在相同的替换水平和年龄下，第1天和第7天的抗压强度结果与累积热值高度吻合，表明CTDW导致的强度比石灰石高出5％。直至7天，CTDW均未观察到明显的火山灰反应。