A Novel Low Carbon Binding Materials: Investigation of Lime-based Cementitious Materials Based on Performance
A novel type of lime-based low carbon cementitious material (LCM) was designed and prepared using low contents of hydrated lime and Portland cement and a high content of mineral admixtures.The mechanical properties, heat of hydration, hydration degree, hydration products, and microstructure of LCM were systematically investigated.The test results indicated that LCM showed good mechanical properties and workability compared with conventional blended cement.The compressive strength of LCM can achieve 50-60 Mpa at curing 28 days and more than 70 Mpa at curing 180 days.The hydration products of LCM were mainly composed of ettringite, portlandite, and C-(A)-S-H gel according to X-ray powder diffraction results.The hydrated lime reacted with mineral admixtures in long-term hydration and increased the mechanical property of LCM.In addition, LCM exerted a notable reduction in carbon emission, energy consumption and environmental burden compared with Portland cement.
Lime-based Mineral admixtures Hydration products Carbon emission
Meng Wu Yunsheng Zhang Guojian Liu Wei Sun
Jiangsu Key Laboratory for Construction Materials, Southeast University, Nanjing 211189,PR China
国际会议
福州
英文
449-456
2018-11-04（万方平台首次上网日期，不代表论文的发表时间）