International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 10 | Oct 2024
p-ISSN: 2395-0072
www.irjet.net
HEALTH MONITORING DETERIORATED CONCRETE USING AN CALORIMETRY ANALYSIS M. Naveen Naik1, Dr. E. Arunakanthi2 1MTech Student (Structural Engineering), Civil Engineering Department, JNTUACEA, Anantapuramu, Andhra Pradesh,
India
2Professor of Civil Engineering Department, JNTUACEA, Anantapuramu, Andhra Pradesh, India
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Abstract
This project investigates the design and performance of M30 grade concrete, focusing on analysing its relations between colour profiles, deterioration and residual strength after a chemical attack using image-based techniques. The study involves casting and curing M30-grade concrete cubes over 28 days for optimal strength. After curing, the cubes were placed in four different chemical solutions: Hydrochloric Acid (HCl), Sodium chloride (NaCl), sulphuric acid (H₂SO₄), and Acetic Acid (CH₃COOH), each at a concentration of 5%. The immersion durations were 7, 14, 28, and 56 days. Following exposure, the samples undergo photography, and the images are analysed using CIE-XYZ colour space. The analysis extracts colour profiles and chromaticity diagrams to quantify the extent of chemical-induced deterioration. The results provide a detailed understanding of how different chemicals impact the structural integrity of M30-grade concrete and offer insights into the material's durability under aggressive environmental conditions. This research enhances the understanding of concrete performance in real world scenarios and contributes to improved design and maintenance practices. Keywords: Calorimetry Analysis, Chromaticity diagrams/Image-based damage assessment, CH₃COOH, NaCl, HCl, and H₂SO₄, Residual Compressive strength.
1. Introduction Enhancing the skeletal integrity of existing buildings is just one aspect of sustainability in construction. buildings but also addressing degradation resulting from environmental factors and aging (Ostachowicz and Guemes (2013). even while concrete constructions offer numerous benefits, they are prone to substantial deterioration when subjected to chemicals or high humidity. Understanding how different factors affect both mechanical performance and durability is essential for deciphering the intricate patterns of degradation
the spacing between microscopic gaps, the direction of the fibres in fiber-reinforced building materials, and colour changes brought on by changes in temperature, damage from fire, or chemical exposure. According to Jurevicius et al. (2014), the fundamental idea behind digital image processing is to visualise the dispersion of the relationship matrix of digital pictures in order to measure surface roughness characteristics. A further way to understand changes in compact and strength is to analyse the shape of air holes in concrete reinforced with cast iron fibres.Reported by Redon, a et al. (1999), research has been done on the relationship between air spaces and fibre orientation. SKIZ, distance function, and count-dilation approaches are a few examples of methods that have been developed using methods of digital image processing to estimate the distribution of and distance among voids (Dequiedt et al., 2001).. In order to measure fracture width, automated methods for feature extraction, such as the
Digital image processing is one non-contact, nondestructive evaluation technique that has many advantages over manual measurements and visual inspections. particularly in terms of accuracy and objectivity. Digital image processing integrates various techniques and resources for gathering certain data, such as crack characteristics (such as width and length),
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