Understanding the effect of acid rain on physico-chemical and engineering properties of black cotton soil

Abstract. Evaluation of the postharvest properties of nine proso millet cultivars was carried out to determine their physical and engineering properties, which are very useful for designing appropriate systems for process operations such as sorting, drying, heating, cooling, and milling. Nine cultivars of proso millet comprising waxy and non-waxy types, namely Cope, Earlybird, Huntsman, Minco, Plateau, Sunrise, Rise, Dawn, and Panhandle, were obtained from the Panhandle Research and Extension Center, University of Nebraska, Scottsbluff. Results showed significant (p < 0.05) differences in their physical properties, such as sphericity, volume, bulk density, porosity, and angle of repose, which ranged from 0.86 to 0.91, from 3.94 to 5.14 mm3, from 765.49 to 809.67 kg m-3, from 42.49% to 44.20%, and from 22.98° to 25.74°, respectively. The cultivars were also evaluated for their pasting and gelatinization properties, and high correlation was found between amylose content and onset temperature (r = -0.94), peak gelatinization temperature (r = -0.92), peak viscosity (r = 0.84), final viscosity (r = 0.91), and setback viscosity (r = 0.90). The understanding of these basic physical and functional properties of proso millet cultivars will form the foundation for processing them into value-added products. Keywords: Chemical properties, Pasting properties, Proso millet.

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Correlation between Physico-Chemical Properties and Engineering Properties of Soil Samples from Pinousuk Gravel Deposit of Mesilou, Kundasang, Sabah

ASM Science Journal ◽

10.32802/asmscj.2020.sm26(2.8) ◽

2020 ◽

Keyword(s):

Chemical Properties ◽

Soil Samples ◽

Engineering Properties ◽

Physico Chemical ◽

Gravel Deposit ◽

Properties Of Soil

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Stabilization of Black cotton soil using Fly ash

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.e5164.019521 ◽

2021 ◽

Vol 9 (5) ◽

pp. 91-96

Author(s):

Prerna Priya ◽

Ran Vijay Singh

Keyword(s):

Fly Ash ◽

Soil Stabilization ◽

Research Paper ◽

Strength Properties ◽

Engineering Properties ◽

Black Cotton Soil ◽

Significant Damage ◽

The World ◽

Wet Condition ◽

Black Cotton Soils

Expansive Black cotton clay soils are widely distributed worldwide, and are a significant damage to infrastructure and buildigs.It is a common practice around the world to stabilize black cotton soil using fly ash to improve the strength of stabilized sub- base and sub grade soil. Soil stabilization is the improvement of strength or bearing capacity of soil by controlled compaction, proportioning or addition of suitable admixtures or stabilizers. The Black cotton soils are extremely hard when dry, but lose its strength fully when in wet condition. In monsoon they guzzle water and swell and in summer they shrink on evaporation of water from there. Because of its high Swelling and shrinkage characteristics the black cotton soils has been a challenge to the highway engineers.So in this research paper fly ash has been used to improve the various strength properties of natural black cotton soil.The objective of this research paper is to improve the engineering properties of black cotton soil by adding different percentage of fly ash by the weight of soil and make it suitable for construction. A series of standard Proctor tests (for calculation of MDD and OMC) and California Bearing Ratio (C.B.R) tests are conducted on both raw Black cotton soil and mixed soil with different percentages of fly ash (5%, 10%, 20%, 30%) by weight. A comparison between properties of raw black cotton soil, black cotton soil mixed with fly ash are performed .It is found that the properties of black cotton soil mixed with fly ash are suitably enhanced.

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Study on Soil Stabilization by Using Fly Ash and Ground Granulated Blast Furnace Slag (GGBS)

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2021.37793 ◽

2021 ◽

Vol 9 (8) ◽

pp. 2506-2512

Author(s):

Pratiksha R. Patil

Keyword(s):

Blast Furnace ◽

Fly Ash ◽

Blast Furnace Slag ◽

Soil Stabilization ◽

Engineering Properties ◽

Black Cotton Soil ◽

Soil Test ◽

Granulated Blast Furnace Slag ◽

Strength And Durability ◽

Furnace Slag

Abstract: Soil stabilization has become the more issue in construction activity. In this study we focus on improvement of soil by using Fly ash and ground granulated blast furnace slag (GGBS). In many villages there was demolition of houses due to flood situation and landslide so stabilization of soil is very important factor in this area. In these studies we use local Fly ash and Ground granulated blast furnace slag (GGBS) for stabilization of soil. Soil are generally stabilized to increase their strength and durability or to prevent soil erosion. The properties of soil vary a great deal at different places or in certain cases even at one place the success of soil stabilization depends on soil testing. Various methods are there to stabilize soil and the method should be verified in the lab with the soil material before applying it on the field. The various percentages of Fly ash and GGBS were mixed with soil sample to conduct soil test. Using fly ash reduces the plasticity index which has potential impact on engineering properties also GGBS has cementations property which acts as binding material for the soil. On addition of 15% Fly ash and 5% GGBS increase the strength of soil (according to IS2720:1985) it’s recommended for better result. Keywords: Stabilization of soil, Fly ash, GGBS, Black cotton soil, Soil test.

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