The Impact of Waste Generated from Thermal Transformation of Municipal Wate on Selected Properties of Cement Mortar

System Safety: Human - Technical Facility - Environment Pub Date : 2023-12-01 DOI:10.2478/czoto-2023-0016

A. Pietrzak

引用次数: 0

Abstract

Abstract The article analyzes the possibility of using two types of waste from the thermal transformation of municipal waste in the production technology of cement mortars. Fly ash and dust were used in amounts of 5, 10, 15, 20, 25 and 30% of the cement mass as a replacement for sand. In total, 11 series of cement mortars were prepared: a standard control mortar and 10 series of mortars modified with individual waste. The following tests were performed for the prepared samples: bending and compressive strength after 7 and 28 days of maturing, water absorption and consistency testing for fresh mortars. Based on the results obtained, it can be concluded that the use of waste dust and fly ash in the amount of 30% as a replacement for sand reduces the compressive strength by 24.0% and 8.0%, respectively, and the bending strength by 23.6% and 21.5%, respectively.

查看原文本刊更多论文

城市污水热转化产生的废物对水泥砂浆某些性能的影响

摘要文章分析了在水泥砂浆生产技术中使用城市垃圾热转化产生的两种废物的可能性。粉煤灰和粉尘的用量分别为水泥质量的 5%、10%、15%、20%、25% 和 30%，作为沙子的替代物。总共制备了 11 个系列的水泥砂浆：一个标准对照砂浆和 10 个用个别废物改性的砂浆系列。对制备的样品进行了以下测试：7 天和 28 天熟化后的抗弯强度和抗压强度、吸水性和新鲜砂浆的稠度测试。根据所获得的结果，可以得出结论：使用 30% 的废灰尘和粉煤灰代替砂，抗压强度分别降低了 24.0% 和 8.0%，抗折强度分别降低了 23.6% 和 21.5%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

System Safety: Human - Technical Facility - Environment

自引率

0.00%

发文量