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邓经祥1 ,  王振坤1  ,  牛立可2 ,   陈   朋2 ,  何    博1 ,  陈俊玮2 ,  惠   冰2

 

( 1 .  葛洲坝集团交通投资有限公司 ，武汉 430000 ;  2.  山东省交通科学研究院 ，济南 250104)

摘   要 ：为减少公路施工过程中的碳排放 ，实现煤矸石 、高炉矿渣 、粉煤灰等固废材料在 3D 打印技术中的应用 ，进行 3D 打印技术的多源固废材料配合比设计及性能研究 ，分析粉煤灰水泥质量比 、水胶比 、砂胶比及减水剂掺量对材料可打印性 、建造性 、物理力学性能及耐久性的影响。结果表明：水胶比与减水剂是固废材料流动性能的主要影响因素 ，与流动度正相关 ；打印材料高度变化率及抗压强度随水胶比增大而降低 ，水胶比宜采用 0. 35 ；粉煤灰质量占比与抗压强度负相关 ，粉煤灰水泥质量比宜为 10 : 90 ；随砂胶比增大 ，打印材料抗压强度呈先增后减趋势 ，峰值点出现在 1 . 2 处 ；固废材料耐久性与减水剂掺量负相关 ，减水剂掺量不宜超过 1% 。研究成果可为类似 3D 打印材料设计及应用提供借鉴与参考。

关键词：3D 打印 ；固废材料 ；配合比 ；打印性能 ；影响因素

中图分类号：U416. 1          

 文献标志码：A            

文章编号： 1005- 8249  (2025)  04- 0039- 07

DOI:10. 19860/j.cnki.issn1005 - 8249.2025 .04.008

 

DENG Jingxiang1  ,  WANG Zhenkun1  ,  NIU Like2 ,  CHEN Peng2 ,  HE Bo1  ,  CHEN Junwei2 ,  HUI Bing2

( 1 . Gezhouba Group Transportation Investment Co . , Ltd. , Wuhan 430000 , China;

2. Shandong Transportation Research Institute ,  Ji ’nan 250104 , China)

Abstract :  In order to reduce carbon emissions during highway construction ,  the application of solid waste materials such as coal gangue , blast furnace slag and fly ash in 3D  printing technology is realized. This  paper  studies  the  design  and  performance  of multi - source  solid waste materials  based on 3D  printing technology. The  effects  of fly  ash  cement  mass  ratio , water - binder ratio , sand - binder ratio  and water reducer on the printability , buildability , physical and mechanical properties and durability of materials are analyzed. The  results show  that  the water - binder  ratio and water reducer are the main factors affecting the fluidity of solid  waste  materials , which  are positively correlated with the fluidity; The  height  change  rate  and  compressive strength of the printing material decrease with the increase of water - binder ratio , the water - binder ratio  should be 0. 35 ; The mass ratio of fly ash to cement is  negatively  correlated with  compressive  strength , the  mass  ratio  of fly  ash  to  cement  should be 10 : 90;  With the increase of sand - binder ratio , the compressive strength of printing materials increases first and then decreases ,and the peak point appears at 1 . 2;  The durability of solid waste material is negatively correlated with the dosage of water reducing

agent ,  the dosage should not exceed 1% . The  research  results  can provide reference for the design and  application of similar 3D printing materials .

Key words :  3d printing;  solid waste materials;  mix proportion;  printing properties;  influencing factor

基金项目： 山东省交通运输厅科技计划项目  (2023B47) 。

作者简介：邓经祥  (1989—) ,  男 ，本科 ，高级工程师 ，研究方向：公路工程。

通信作者：惠   冰  (1986—) ,  男 ，硕士 ，高级工程师 ，研究方向：地下工程及岩土工程。

收稿日期：2024 - 06 - 03