International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 10 Issue: 06 | Jun 2023
p-ISSN: 2395-0072
www.irjet.net
DETERMINATION OF STRENGTH OF SOIL AND ITS STABILITY USING NON DESTRUCTIVE TESTS Aajeev1, Abhitkarsh2, Ayush Raj Singh3, Kunal Sawlani4 1,2,3,4Student, Department of Civil Engineering, Dayananda Sagar CollegeOfEngineering, Bengaluru, Karnataka, India ------------------------------------------------------------------------***------------------------------------------------------------------------ABSRACT The alteration or modification of one or more soil properties to enhance a soil's engineering qualities and performance is known as soil stabilization. A practical and environmentally responsible way for improving soils is to use industrial waste products. Ultrasonic testing is used in this study to determine density. This technique can offer a quick and easy way to ascertain the properties of compacted stabilized soil. As an alternative to currently utilized methods for analyzing laboratory or field compacted soils, this non-destructive technique can be applied. The compaction parameters of stabilized soil are identified in this work using measurements of ultrasonic velocity. Analysis was doneon how the density and water content of compacted stabilized soils affected the ultrasonic velocity variation. The effects of soil type and velocity-dependent compaction conditions were examined. Keywords: soil stabilization, Ultrasonic Pulse Velocity, NDT method
1. INTRODUCTION Compaction characteristics of soil may be determined by analyzing the connection between soil's dry density (unit weight) and water content. Proctor compaction tests (ASTM D 698) are often used in laboratories to evaluate how changes in dry density with water content. The connection between the soil's dry density and water content is depicted by a compaction curve. The compaction characteristics of field soils and those of soils tested in a lab are compared to determine if building methods are effective. The use of in-situ methods necessitates more time. The ultrasonic pulse velocity method is an alternative strategy that this study effort tries to show. Ultrasonic testing makes it simple and rapid to identify the traits of compacted soils. This non-destructive technique can be used in place of the current ones to assess soils that have been compacted in a lab or in the field. Following the completion of standard tests on soil samples with varied degrees of plasticity, such as black soil, an ultrasonic pulse velocity test was carried out on the samples, and a graph illustrating the link between density and velocity and water content was produced. An ultrasonic pulse velocity test brought the results to a conclusion after the association was established by extrapolating the results of prior conventional investigations. The standard values are acquired during the course of the laboratory tests, and the outcomes are then verified using the data from the ultrasonic pulse velocity measurement.
2. SCOPE AND OBJECTIVES OF PRESENT STUDY To carry out standard quality control in the field, the methods ask for core-cutting pavement samples to be gathered for later laboratory testing. This procedure cannot be used to fix mistakes found while laying and compacting soil sub grade in the field since it is too time-consuming, expensive, and valuable solely for official records. In order to manage the soil sub grade of the pavement layer, fast on-the-spot measurements are necessary. The development of the ultrasonic pulse velocity method is influenced by these elements. Using an alternative in-situ testing technique termed ultrasonic testing, the research's goal is to evaluate the physical features of black soil and the stabilization of black soil by stabilizers. The main objectives of the study are:Researching how stabilizers alter Black soil's engineering performance and determining if they canbe employed as soil stabilizers are the study's key goals. The strength and stiffness of the soil specimen will increase if the soil stabilizer has good volumestability and durability.
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