Ultrasonic pulse velocity data for Maitland and Stellawood cemeteries, and laboratory experimental data to establish ultrasonic pulse velocity equipment limitations

Cemeteries were used as time-series laboratories to assess weathering effects on gabbro stone as a function of different climatic forcings. Tombstones were measured using ultrasonic pulse velocity, which is a recognised assessment proxy for material structural integrity. In order to use this technique, it had to be carefully studied so as to limit experimental error, and then deployed in the field at cemeteries in different locations. The files presented here show the following:Lab work: experiments were carried out to assess the effects of ultrasonic couplant and transducer alignmentField work: An array of tombstones at Maitland Cemetery (Cape Town) and Stellawood Cemetery (Durban) were assessed using the developed experimental method.

本研究以墓地作为时序实验实验室，旨在评估不同气候驱动因子对辉长岩（gabbro）石材的风化效应。研究采用超声脉冲速度（ultrasonic pulse velocity）技术对墓碑进行检测，该方法是公认的材料结构完整性评估替代指标。为保障该技术的可靠应用，需先开展细致研究以控制实验误差，随后将其部署至不同地点的墓地开展野外实测工作。
本次公开的数据集包含以下内容：
实验室工作：开展相关实验以评估超声耦合剂与换能器对准情况对检测结果的影响；
野外工作：采用所开发的实验方法，对位于开普敦（Cape Town）的梅特兰墓地（Maitland Cemetery）以及德班（Durban）的斯特拉伍德墓地（Stellawood Cemetery）的多组墓碑进行了检测评估。