Relationship of Physical Parameters in Pb-Contaminated by Stabilization/Solidification Method

Abstract

Abstract. This research was performed to investigate the relationship between compressive strength, density and water absorption of Pb-contaminated soil treated by Ordinary Portland cement (OPC) incorporated with sugarcane bagasse (SCB) using the Stablisation/Solidification (S/S) method. The SCB and OPC varying from 5% to 15% was added to stabilize and solidify the Pb-contaminated soil. The cylindrical samples were prepared and cured at room temperature for 28 days. Unconfined compression test, density test and water absorption test were conducted on these samples. The relationship between these variables were determined using simple statistical method by Analysis of Variance (ANOVA). Results indicate that there is a strong relationship between compressive strength and density with a regression coefficient of 77.4%. There is also a significant relationship between density and water absorption of approximately 70.7%. In addition, compressive strength and water absorption produced a strong relationship which is 73.6% of variability in strength development. In a nutshell, the strong relationship between these three variables represent the actual physical characteristics in S/S application.

Enhancing bioactivity and mechanical performances of hydroxyapatite–calcium sulfate bone cements for bone repair: in vivo histological evaluation in rabbit femurs

“…This means a strong relationship exists between these two variables. 70 Fig. 10b shows the relation of the σ f as a function of grain size ( d ).…”

“… 69 In addition, the regression analysis showed that this model explains 98.02% of the variability in Young's modulus. 70 …”

“…69 In addition, the regression analysis showed that this model explains 98.02% of the variability in Young's modulus. 70 Plots of the s c as a function of CaS content at various incubation days from 1, 3, and 7 days of the HAP-xCaS bone cements are shown in Fig. 11.…”

An Investigation of Geomechanical and Microstructural Properties of Full-Scale Jet Grout Column Constructed in Organic Soil

“…In addition, water absorption reached the minimum level at the center of the grout column because the relationship between water absorption and porosity was inversely related. Statistical analysis showed significant correlations at the 95% confidence level between density and water absorption [46]. The present study reported that the density randomly increased and decreased from the center to the edges at the same layer; hence, sample S0.0-R (1.25 gm/cm 3 ) was detected as the highest value compared with samples S0.0-C, S0.0-L, S0.0-U, and S0.0-D, such as 1.24, 1.14, 1.24, and 1.21 gm/cm 3 , respectively, and the same approach of variation was recognized for all other depths.…”

Novel Technique to improve the pH of Acidic Barren Soil using Electrokinetic-bioremediation with the application of Vetiver Grass

“…Recently, there are many techniques that have been used by previous researchers to reduce the toxicity levels in soil [13,14]. In the last decade, the development of electrokinetics and its combination with bioremediation technologies have become a research focus [4].…”