The increase in waste generation in the textile and clothing industry is a reflection of population growth. In Brazil, only 20% of this waste is reused. The construction industry is one of the sectors that are able to absorb solid waste from various industrial activities, seeking alternatives for use and for waste valorization. Correspondingly, in this work, coating mortars were produced with the incorporation of fabric shavings (cement: hydraulic lime: sand at a ratio of 1:1:6 by mass), and evaluated them as reinforcement or thermal insulation materials. The waste was shredded manually to emulate the fibers that exist in the market. To analyze the influence of waste on the coating mortars properties, a 3² factorial design was performed, wherein the yarn content varied (at 1, 2, and 3% in relation to the binder mass) and the length varied at 1, 2, and 3 cm. The mortars that contained the yarns were experimentally evaluated based on flexural tensile strength and tensile adhesion strength tests. The best composition (yarn content of 3% and length of 3 cm) was subjected to a) thermal tests at 40 °C and 60 °C, b) mechanical, and c) physical tests, and their outcomes were compared with those of the reference sample (without waste). When waste was introduced in the mortars, the water/binder ratio increased to maintain the same consistency index. In the adhesion test, the mortars with waste adhered to the substrate and reached the minimum strength value required by the technical standards of 0.30 MPa. The flexural tensile strength was also higher than the established 1.0 MPa. With the exception of tensile adhesion strength, the mechanical strength of the mortar with the fabric yarns was less than that of the reference mortar. The mortar with the added waste yielded a satisfactory performance in thermal tests at 60 °C.

纺织和服装业废物产生的增加反映了人口的增长。在巴西，仅20％的废物得到了再利用。建筑行业是能够吸收来自各种工业活动的固体废物，寻求替代用途和废物定值的行业之一。相应地，在这项工作中，通过掺入织物屑（水泥：水硬石灰：砂的质量比为1：1：6）来生产涂料砂浆，并将其作为增强材料或隔热材料。手动将废料切碎以模拟市场上存在的纤维。为了分析废物对砂浆性能的影响，A 3 ²进行析因设计，其中纱线含量变化（相对于粘结剂质量为1％，2％和3％），长度变化为1、2和3 cm。基于挠曲拉伸强度和拉伸粘合强度测试，对包含纱线的砂浆进行了实验评估。最佳组合物（纱线含量为3％，长度为3 cm）经过a）40°C和60°C的热测试，b）机械测试和c）物理测试，并将其结果与参考样品（无浪费）。当将废料引入砂浆中时，水/粘合剂之比增加以保持相同的稠度指数。在附着力测试中，带有废料的砂浆附着在基材上，达到技术标准要求的最小强度值0.30 MPa。弯曲抗拉强度也高于设定的1.0MPa。除拉伸粘合强度外，带有织物纱线的砂浆的机械强度低于参考砂浆的机械强度。添加了废料的砂浆在60°C的热测试中表现出令人满意的性能。