一种用于抑制反射裂缝的新型GSOG-20沥青混合料的效益分析

Analysis on Benefits of a New GSOG-20 Asphalt Mixture Used to Suppress Reflection Cracks

用于旧水泥路面加铺沥青层的抑制反射裂缝技术——GSOG抑制反射裂缝技术,目前已在上海地区得到广泛应用。2015年进行了新型胶粉——高粘度改性剂复合改性GSOG沥青混合料的开发,经试验段验证,该种新型沥青混合料具有优良的抑制反射裂缝性能;首次在高粘度间断级配沥青混合料中采用石灰石作为粗集料,并引入废旧胶粉是该试验的创新点。从经济效益和社会效益两方面,探讨该种新型沥青混合料的应用价值和市场前景。

The GSOG technology of suppressing the reflection cracks used in the old cement pavement asphalt overlays has been widely applied in the area of Shanghai. A new GSOG asphalt mixture modified by rubber powder and high viscosity modifier has been developed in 2015. This new asphalt mixture has the excellent performance suppressing the reflection cracks after proved in the test section. The innovation points of this test are firstly to use the limestone as coarse aggregate in high viscosity discontinuous gradation asphalt mixture, and to introduce the waste rubber powder in this test. The article analyzes and discusses the application value and market prospect of this new asphalt mixture from economic benefit and social benefit.