评价圆穿透测试作为一个风病学质量控制领域导向测试,用于3D打印基于水泥的系统
Enrique Gomez1, Hugo Varela1, Gonzalo Barluenga1
1Departamento de Arquitectura, Universidad de Alcala, 28801 Madrid, Spain.
Materials (Basel, Switzerland)
|March 14, 2026
概括
圆穿透测试 (CPT) 可以估计3D打印的基于水泥的系统 (CBS) 的机械性能. 这种方法有助于监测材料演变,以便在施工过程中控制质量,尽管它可能会因为刚性而高估强度.
科学领域:
- 建筑材料科学 建筑材料科学
- 增材制造技术 增材制造技术
- 地质技术工程 地质技术工程
背景情况:
- 基于水泥的系统的3D打印 (3DP CBSs) 需要精确的材料特性才能成功建造.
- 现场施工需要面向现场测试,以实时进行质量控制和过程监控.
- 了解机械性能的演变对于控制施工速度和确保结构完整性至关重要.
研究的目的:
- 评价圆穿透测试 (CPT) 作为一种以现场为导向的方法,用于评估随时间推移3DP CBSs的机械性能.
- 为了比较CPT结果与既定的实验室测试,如挤压测试 (SQT) 和风测试 (VT).
- 为了确定CPT测量与3DPCBS的新鲜压力强度和剪率应力之间的相关性.
主要方法:
- 使用圆穿透测试 (CPT) 测量了90分钟内3DPCBS的穿透深度.
- 从CPT数据计算的切割屈服应力和新鲜的压力强度.
- 将CPT结果与各种CBS配方的实验室压缩测试 (SQT) 和风测试 (VT) 进行比较.
主要成果:
- CPT测量受到糊的刚度 (Young's Modulus, E) 的显著影响,可能导致过高的强度.
- 刚度增加的拐点 (在130kPa) 表明面料从塑料转变为伪刚性的行为.
- 基于SQT和VT结果,定义了CPT衍生平均强度的线性调整,与机械性能的演变相关联.
结论:
- 圆穿透测试 (CPT) 显示出作为一种基于现场的方法来监测3D打印水泥系统的机械演变的潜力.
- 在强度估计中CPT的准确性取决于对材料的刚性和过渡性行为的考虑.
- 该研究提供了一种调整CPT数据的方法,以便在实时建筑监测中更可靠地进行强度评估.
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