Abstract
Objectives: To design a non-destructive, low-effort, low-cost device that can estimate the early age and compressive strength of in-place concrete in real time. The maturity protocol eliminates the need for on-site concrete cylinder break checks or hammer tapping test saving time and resources. Methods: Four different temperature sensors were used to measure the temperature of concrete in order to improve the system’s accuracy. As concrete structure monitoring with temperature sensors is a continuous process, the study includes automated data logging at regular intervals, storage of measured temperature data over time on an attached SD card, and transmission to a server through the SIM800L’s GPRS capability. Findings: The current work presents a low-cost (31 USD), low-powered (3.7v/2.8A), and portable temperature sensor and logger that will track and record temperature values so that values can be monitored remotely from anywhere on the planet. Data can be managed and tracked from any location and on any computer that has internet access. Communication between presented units with MQTT platform has been studied. Novelty/Applications: This device is a simple batteryoperated, small-size, compact, low-power data acquisition system with multiple sensors. With the support of GPRS, data can be sent to a server. Concrete testing delays are no longer a concern. It is possible to check the status of pour and receive updates anytime, wherever, on any computer with this method’s real-time data and 24/7 remote monitoring capabilities. This simple,trouble-free module is completely integrated and needs no wires or testing laboratories, allowing for quick onsite decisions and preventing unnecessary setbacks. Keywords: GPRS; DS18B20; ESP8266; MQTT (Message Queuing Telemetry Transport)
Highlights
Compressive strength plays a fundamental capacity in the solidness of designs
The compressive strength of standard examples is resolved in two unique manners is to be: Cubes and Cylinders
This study reports the design and development of an automated, IOT based low cost, multi-channel data acquisition and data logging system for civil construction application which is battery operated and reports the temperature at set intervals to MQTTLens
Summary
Compressive strength plays a fundamental capacity in the solidness of designs. The compressive strength of standard examples is resolved in two unique manners is to be: Cubes and Cylinders. The curing of the concrete cube /standard cylinder ought to be accomplished for 7 days, 14 days, and 28 days as per the test results, and the concrete cube /standard cylinder should be cured appropriately (1). This strategy is tedious while it is important to ensure the quality of the material. The concrete strength relies upon both time and temperature. The temperature history would be able to be utilized to figure out the time and temperature factor of concrete, empowering the client to predict its initial age compressive strength. Observing the real-time strength of cement with wireless techniques is appealing(4)
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