Abstract
This work presents a new method to determine the evolution of the dynamic Young’s modulus (MOE) from small mechanical disturbances caused by cement mortar samples and whose value is collected using a low-cost Arduino accelerometer. The results obtained are correlated with measurements made using traditional ultrasound techniques, in addition to the evolution of MOE being related to the variation in mechanical properties that cement mortars experience over time. In this way, in this work, a secure application method is presented that allows us to advance the knowledge of construction materials with the incorporation of construction and demolition waste (CDW) and—more specifically—of cement mortars made with aggregates recycled from ceramic or concrete waste.
Highlights
The circular economy refers to a production process in industry in which the materials that contain waste are reincorporated repeatedly for the elaboration of new products and raw materials [1].Currently, the vast majority of generated construction and demolition waste (CDW) ends up being sent to a landfill—an action that contradicts the objectives of the 2030 horizon, where the importance of recycling and reusing all waste that can be recycled or reused is highlighted [2].The construction sector is a prevalent consumer of raw materials
The Arduino low-cost accelerometer sensor used in this work reliably collected the propagation velocity values of mechanical disturbances through the designed mortars
The correlation between the results obtained by the traditional method based on the emission and capture of ultrasonic waves and the alternative method designed with Arduino accelerometers has been established, observing a strong positive linear relationship
Summary
The circular economy refers to a production process in industry in which the materials that contain waste are reincorporated repeatedly for the elaboration of new products and raw materials [1]. The construction sector is a prevalent consumer of raw materials. The high use of aggregates for the production of mortars and concretes stands out to the extent that approximately 85% of this material is used for this purpose [3]. It is necessary to carry out crushing and separation processes for the CDW if recovery is to be efficiently achieved [4]. Various factors come into play in this process—the origin of the waste, the treatment and washing of the aggregates, the separation at source, etc.—and crucially influence the quality of the final product obtained [5,6,7]
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
