Complex Maturity Method for Estimating the Concrete Strength Based on Curing Temperature, Ambient Temperature and Relative Humidity

Utepov, Yelbek; Aniskin, Aleksej; Tulebekova, A.; Aldungarova, Aliya; Zharassov, Shyngys; Sarsembayeva, Assel

doi:10.3390/app11167712

Cited by 16 publications

(4 citation statements)

References 15 publications

(15 reference statements)

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“…It was the average strength values that were used for further analysis. The curing temperature of large specimens, as well as ambient temperature and relative humidity on their curing conditions were measured each 0.5 hours [17] (Fig. 3c).…”

Section: Methodsmentioning

confidence: 99%

Assembling a Multisensory Device for Monitoring and Assessing Concrete Curing Conditions

Utepov¹

2022

Eurasian phys. tech. j.

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The conventional direct and indirect methods to study the mechanical characteristics of concrete are mainly performing discrete measurements, omitting the continuous internal and external phenomena occurring in the concrete body that may significantly affect its strength and quality. This study presents a multisensory device and a method that simultaneously measures and assesses the impact of curing temperature, ambient temperature and relative humidity on the concrete strength. The device was assembled on the basis of Arduino Pro Mini microcontroller connected with various sensors, as well as clock reading and memory modules. The method proposed to assess the impact of different factors on concrete strength is based on strength tests and their confidence curve, monitoring of concrete curing conditions, correlation and weighting techniques. The performance of proposed device and its method was justified experimentally using the concrete cubic specimens of different size. To visualize the specimens monitoring results the color gradations, petal and bar chart representations were used, and taken into account for the future implementation of a software interface for the multisensory device.

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Section: Methodsmentioning

confidence: 99%

Assembling a Multisensory Device for Monitoring and Assessing Concrete Curing Conditions

Utepov¹

2022

Eurasian phys. tech. j.

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“…The testing procedure included the studies of the process of concrete strength gain in using different instrumentation, such as IPS-MG-4.03 shock-pulse sclerometer, hydraulic press, and wireless sensors. The marketable concrete with the grade of B25 M350 was tested, and the data obtained in the tests can only be used for this concrete with the same consumables [13].…”

Section: Testing Proceduresmentioning

confidence: 99%

Performance of a Wireless Sensor Adopted in Monitoring of Concrete Strength

Utepov¹

2022

GEOMATE

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In connection with the global trends of increasing requirements for efficiency and environmental friendliness of production, to create the safest possible conditions, innovative technologies are more intensively developed and applied. Today, an urgent issue is the improvement of systems for monitoring the construction of buildings and structures. The study presents an embedded sensor for non-destructive wireless control of reinforced concrete structures by the Maturity method, which allows monitoring data on the current concrete strength gain and internal temperature using special software. The features of the device, consisting of three main components: temperature gauges, a data collection station, and server software are disclosed. Experimental studies on debugging the sensor operation are presented. The test results presented in the work confirm the characteristics and functionality of the sensor. Thus, the strength values of concrete samples obtained by embedded sensors showed a greater convergence (R 2 = 0.9357) with fundamental compressive strength values, compared to those obtained by the Shock-pulse method (R 2 = 0.8965). Application of the proposed solution may significantly optimize the concrete formwork removal cycles speeding up the pace of construction, saving man-hours and other resources, including finances.

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“…Main purpose of the maturity sensors is to help estimating a concrete strength by indirect methods using a certain relationship between the temperature-time factor and strength, which was described in some international standards [3]. This relationship has been thoroughly discussed in previous studies [4], as well as some its modifications were presented. The sensors monitoring ambient conditions also exist and developed in different variations [5].…”

Section: Introductionmentioning

confidence: 99%

On-site pilot testing of maturity sensors in conjunction with ambient condition monitoring device to get an insight into the concrete strength gain process

Utepov

Zharassov

2022

tbus

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The article demonstrates the performance of newly developed concrete maturity sensors on the construction site of residential complex “New Line” in Nur-Sultan. The sensors were mounted on the rebar of reinforced concrete structures to monitor the curing temperature of poured concrete grade M350 during 7 days. Additionally, the sensor device monitoring ambient temperature and relative humidity was set nearby. 14 cubic specimens were molded for compression test to determine the concrete strength. To get an idea on the degrees of influence of considered factors on concrete strength gain, the correlation analysis was conducted. As expected, the curing temperature showed a significant correlation with compressive strength, and its degree of influence amounted 58%. The ambient temperature with influence degree of 36% seemed to affect the concrete strength vividly. The relative humidity affected insignificantly with 6%. Based on conducted investigations the well-enough performance of maturity sensors is concluded. Moreover, there was set plans on the extension of their software solution with colored cross-correlation analysis technique.

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Complex Maturity Method for Estimating the Concrete Strength Based on Curing Temperature, Ambient Temperature and Relative Humidity

Cited by 16 publications

References 15 publications

Assembling a Multisensory Device for Monitoring and Assessing Concrete Curing Conditions

Assembling a Multisensory Device for Monitoring and Assessing Concrete Curing Conditions

Performance of a Wireless Sensor Adopted in Monitoring of Concrete Strength

On-site pilot testing of maturity sensors in conjunction with ambient condition monitoring device to get an insight into the concrete strength gain process

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