Monitoring of the curing process in precast concrete slabs: An experimental study

Ranz, Javier; Aparicio, S.; Fuente, José Vicente; Anaya, J.J.; Hernández, Melchor G.

doi:10.1016/j.conbuildmat.2016.06.041

Cited by 17 publications

(7 citation statements)

References 16 publications

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“…Dzeng et al [27] presented an algorithm that can detect falls or signs of falls of workers using the acceleration sensor of workers' smartphones. Akhavian et al [28] suggested an application capable of recognizing the activities of workers for each process by classifying the activities for each work process and utilizing the smartphone's gyroscope and acceleration sensor. Yan et al [29] developed a real-time motion warning system to help prevent injuries that can recognize the incorrect movements of workers using smartphones attached to helmets and vests.…”

Section: Data Collection Systems Using Smartphonesmentioning

confidence: 99%

Smartphone-Based Data Collection System for Repetitive Concrete Temperature Monitoring in High-Rise Building Construction

Lim

Kim

2019

Sustainability

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The systematic collection and management of on-site information in high-rise building construction are important factors in construction management. Recently, wireless sensor network (WSN) technology has been utilized to manage the various tasks involved in high-rise construction efficiently and in a timely manner. However, because of the repeated installation of sensors and repeaters along with the construction progress, the existing WSN technology is ineffective when applied to the temperature management of concrete in structural work. Here, we propose a new data collection method in which a worker uses a smartphone to repeatedly monitor concrete temperature. In field implementation, the proposed system enables concrete temperature management without a transmission gap for monitoring in 60-min intervals with smartphones provided to 20% of the structural workers. Next, a case study was performed on a high-rise building construction site to analyze the effectiveness of the proposed system in terms of cost savings by avoiding schedule delay. The results of the case study show that the proposed system can reduce the additional work costs resulting from delays in concrete curing and save up to $18,907 in labor costs. In addition, this system can reduce the temperature management time of the quality manager and enable more efficient management. It is also expected that this system will contribute to on-site waste management by reducing the number of embedded sensors.

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Section: Data Collection Systems Using Smartphonesmentioning

confidence: 99%

Smartphone-Based Data Collection System for Repetitive Concrete Temperature Monitoring in High-Rise Building Construction

Lim

Kim

2019

Sustainability

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“…Sensors and the associated electronics have been designed in such a way that they are resistant both to the projection and to the environmental conditions where this projection is performed (tunnels, laboratory, etc.). The IT incorporates ultrasonic transducers and T/RH sensors because in previous works have been demonstrated that using a calibration procedure, the compressive strength can be estimated from the temperature and ultrasonic velocity measurements [18].…”

Section: Description Of the Measured System Proposedmentioning

confidence: 99%

“…A methodology for the quality control of the curing process in precast concrete plants by non-destructive testing techniques was presented in [18]. This methodology allows the estimation of the strength gain of the precast elements during the curing process using two different procedures, one based on temperature and the other one on ultrasonic velocity measurements.…”

Section: Introductionmentioning

confidence: 99%

A system designed to monitor in-situ the curing process of sprayed concrete

Aparicio

Hernández

Segura

et al. 2019

Construction and Building Materials

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In this paper a system is presented to monitor in-situ the curing process of sprayed concrete. This system consists of an instrumented trough based on wireless sensor networks for monitoring temperature/relative humidity and ultrasounds. The trough has been designed using a trapezoidal cast with several encapsulated transducers and an electronic system for generation, acquisition and processing of ultrasonic signals. A methodology for the measurement of ultrasonic velocity has also been proposed. This system has been proven to be a very good solution for in-situ monitoring of the curing process of sprayed concrete, being able to detect problems or defects in the material fabrication.

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“…Moreover, some studies also embedded temperature, humidity, and ultrasonic sensors through Wireless Sensor Networks into a precast concrete slab for quality management of the mass and compressive strength of concrete during the curing process [ 16 ]. Humidity and temperature are two of the factors affecting the surface corrosion and durability of concrete.…”

Section: Background Researchmentioning

confidence: 99%

Study on the Correlation between Humidity and Material Strains in Separable Micro Humidity Sensor Design

Chang

2017

Sensors

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Incidents of injuries caused by tiles falling from building exterior walls are frequently reported in Taiwan. Humidity is an influential factor in tile deterioration but it is more difficult to measure the humidity inside a building structure than the humidity in an indoor environment. Therefore, a separable microsensor was developed in this study to measure the humidity of the cement mortar layer with a thickness of 1.5–2 cm inside the external wall of a building. 3D printing technology is used to produce an encapsulation box that can protect the sensor from damage caused by the concrete and cement mortar. The sensor is proven in this study to be capable of measuring temperature and humidity simultaneously and the measurement results are then used to analyze the influence of humidity on external wall tile deterioration.

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Monitoring of the curing process in precast concrete slabs: An experimental study

Cited by 17 publications

References 16 publications

Smartphone-Based Data Collection System for Repetitive Concrete Temperature Monitoring in High-Rise Building Construction

Smartphone-Based Data Collection System for Repetitive Concrete Temperature Monitoring in High-Rise Building Construction

A system designed to monitor in-situ the curing process of sprayed concrete

Study on the Correlation between Humidity and Material Strains in Separable Micro Humidity Sensor Design

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