chemical stabilization of soil mcq

A chemical stabilization method is the fundamental of this review and, therefore, throughout the rest of this report, the term soil stabilization will mean chemical stabilization. Through soil stabilization, unbound materials stabilized with cementican be tious materials (cement, lime, fly ash, bitumen or combination of these). Soil Mechanics And Foundation MCQ question is the important chapter for a Civil Engineering and GATE students. Q.10> How the soil erosion can be prevented? Learn Soil Mechanics And Foundation MCQ questions & answers are available for a Civil Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. In the chemical soil stabilization process, an ion exchange solution is applied to the soil to reduce the negative charge of clay particles. This method of soil stabilization methods includes compaction and densification of soil matter by application of mechanical energy using various sorts of rollers, rammers, vibration techniques, and sometimes blasting. Chemical Stabilization of Soil: Calcium chloride being hygroscopic and deliquescent is used as a water retentive additive in mechanically stabilized soil bases and surfacing. We have Provided Physical and Chemical Changes Class 7 Science MCQs Questions with Answers to help students understand the concept very well. _________ are soils in which more than half of the parent mineral matter is volcanic ash and appear very dark in colour. Which one of the following is a step in the formation of soil? When the chemical stabilization or modification of subgrade soils is considered as the most economical or feasible alternate, the following criteria should be considered for chemical selection based on index properties of the soils. Stabilisation of soils are most commonly used in _____ engineering works. Chemical stabilization can aid in dust control on roads Correct Answer. Jun 07,2021 - Test: Soil Exploration | 10 Questions MCQ Test has questions of Civil Engineering (CE) preparation. A. a) Zero. Answer. Which of the following method is also called as the Slices method? ADVERTISEMENTS: 1. It is useful for stabilization of … Stabilization therefore helps in boosting the strength of the soil. 3) The compacted density of the soil is increased. The chemical required varies between 0.1 to 0.2% of the weight of the soil. Hydration and Hydrolysis. ADVERTISEMENTS: List of 85+ MCQs on soil science ! The method is relatively inexpensive but long-term stability is doubtful. technique. This set of Geotechnical Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Mechanical Stabilisation”. There are many causes that lead to soil pollution. Mechanical stabilization involves the use of physical processes. Unlike chemical stabilization, it changes only the physical properties of soil through compaction, soil blending (adding fibrous and non-biodegradable reinforcement) or placing a barrier on the soil. Option – c) 33) The pore water pressure in the capillary zone is. Chemical types of soil stabilization can be achieved through use of traditional and non-traditional agents. There are various methods and materials that can be used in stabilizing soil. The improvement may be accomplished by drainage, compaction, preloading, reinforcement, and grouting, electrical, chemical or thermal methods. Stabilization of low quality aggregate or soil can be done by mechanical, chemical, electrical or thermal means. Soil condition Frequency of sampling Uniform 0.5 to 1.0 mile Non-Uniform 0.25 to 0.5 mile Highly variable 1,000 ft to 0.25 mile Sulfate bearing 500 ft Exploration should be deep enough to identify all strata that can significantly influence the outcome of the stabilization project. 28. In this page you can learn various important soil mechanics multiple choice questions and answers, sloved soil mechanics lab viva questions with answers, important soil mechanics interview question papers,foundation engineering questions and answers etc. This will help you to learn about the frequently asked objective type questions on soil science especially compiled for ICAR, ARS, IARI Ph.D and other competitive exams. Soil Stabilization - MCQ 1. (B) Edge to edge orientation. … QUESTION: 5. Read: Geography MCQ Set] Solar System – Objective GK Questions. The aim of soil stabilization is to increase the a) Seepage.b) Bearing capacity.c) Shear strength.d) Both (b) and (c). (D) All of the above. Soil Class 7 MCQs Questions with Answers. which … (C) Purity. Once this happens, clay particles will actually repel water, allowing it to drain away. Among the various soil stabilization procedures, the most suitable one is selected depending upon the type of soil available, time, cost involved etc. A chemical stabilization method is the fundamental of this review and, therefore, throughout the rest of this report, the term soil stabilization will mean Volume of water to volume of given soil. The limitations of chemical soil stabilization include disparity between simulated laboratory and field conditions could render insitu application impossible, the risk of groundwater contamination is very high as a result of release of toxic compounds from some of the traditional agents as the leachate of toxic chemicals can affect the environment and human life in general, the balance … It also makes it easier to compact the soil because the particles have been crushed into smaller size. The mechanical Soil Stabilization Method is the method of improving soil properties by changing its gradation. The vapour pressure gets lowered, surface tension increases and rate of evaporation decreases. LF stabilization is often appropriate for base and sub-base course materials. View (B) Lightness or brightness. B: Mass exfoliation. Hue denotes. a) Fellenius method b) Swedish slip circle method c) Bishop’s simplified method d) Spencer’s method Answer: b Weight … Soil Stabilization Methods with Different Materials Following are the various soil stabilization methods and materials: Soil Stabilization with Cement The soil stabilized with cement is known as soil cement. Our applicator process is used to stabilize the soil pre-construction at a maximum depth of 15' on projects such as: Acidification of soil by acid rain. 2) It gives more strength to the soils. Q4. - chemical stabilization Under this category, soil stabilization depends mainly on chemical reactions between stabilizer (cementitious material) and soilminerals (pozzolanic materials) to achieve the desired effect. Permeation grouting or chemical grouting, as it is more commonly referred to, is the injection of low viscosity solution or fluid grouts to permeate the pore spaces in granular soils. It increases the maximum compacted unit weight of the soil. Answer: Option D. 3. (2) 1. D: Hydration and Hydrolysis. Study of chemical properties of drugs like hydrolysis, oxidation, reduction, racemization, polymerization etc., and their influence on formulation and stability of products. Q3. Correct Answer. 1. Chemical soil stabilization is intended to modify the interactions between water and soil by surface reactions in such a manner as to make the behaviour of the soil with respect to water effects most favourable for the given purpose. The water content of the Acts as a dispersing agent. If the unit weight of soil is 20 kN/m 3 cohesion is 15 kN/m 2, factor of safety is 1.5 and the stability number is … Grouting method is one of the soil improvement methods that uses to increase strength and reduces the liquefaction potential of soil. Solution: Taylor’s stability No. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. 32) If the unit weight of soil is 20 kn/m3 cohesion is 15 kn/m2, factor of safety is 1.5 and the stability number is 0.05, the safe maximum height of the slope is. Irrigation Engineering Multiple Choice Questions on “Stability of Earthen Slopes”. Dispersed type of soil structure is an arrangement comprising particles having. The method of stabilizing soils is a commonly undertaken procedure in the construction of airfields, parking lots, landfills, embankments, roads and foundations, waterway management, agriculture and mining sites. The distinction between the two classes exists as a result of the pre-existing and well-established additives as compared to the most recently developed agents. Lime stabilization is do by adding lime to a soil. Soil-lime Stabilization. We are fully insured and licensed to ensure customer satisfaction in completing the job. They include geotextiles, lime, cement, electricity, chemical and bitumen. The term soil stabilization means the improvement of the stability or bearing power of the soil by use of controlled compaction, proportioning and the addition of suitable admixture or stabilizers. The water content of soil is defined as the ratio of. Lime and Fly ash in combination can often be used successfully in stabilizing granular materials. With a very few exceptions, however, the chemical soil stabilization methods still cannot be fully evaluated from the aspects of soil physics, technology, and economic efficiency, and there are only a few such methods that have been generally accepted. (a) Earthquakes or volcanic eruptions (b) Weathering of rocks (c) Addition of humus (d) All are involved in the formation of soil Stabilization deals with physical, physico-chemical and chemical methods to make the stabilized soil serve its purpose as engineering material. Check the below NCERT MCQ Questions for Class 7 Science Chapter 9 Soil with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. (A) Face to face or parallel orientation. Choose the correct answer: Question 1. Lime Stabilization. Chemical stabilization includes the use of chemicals and emulsions as compaction aids to soils, as binders and water repellents, and as a means of modifying the behavior of clay. There are various methods for stabilizing soils with liquefaction. It can either be: Q2. The specific yield of soil depends upon. To prepare a) a true solution of common salt, sugar and alum b) a suspension of soil, chalk powder and fine sand in water c) a colloidal of starch in water and egg albumin in water and distinguish between these on (C) Edge to face orientation. The first is to evaluate the properties of soil and understand what is needed, then deciding method to carry out stabilization, design the mix and consider compaction method. Chemical Selection for Stabilization. ultimate bearing capacity. ∴. MULTIPLE CHOICE QUESTIONS ON CHEMISTRY PRACTICALS 1. Clarification: The basic principle for soil stabilization involves four steps. There are two principal ways to apply the ion exchange solution. The cementing action is believed to be the result of chemical reactions of cement with siliceous soil during hydration reaction. rocks—must be stabilized through chemical and mechanical processes. Check the below NCERT MCQ Questions for Class 7 Science Chapter 6 Physical and Chemical Changes with Answers Pdf free download. Lime: If PI > … Chemical Stabilization Cont. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern. Stabilization of course-grained soils having little or no fines can often be accomplished by the use of LF combination. (A) The object of classifying soils is to arrange them into groups according to their properties and behaviour (B) A soil classification system is meant to provide an accepted and systematic method of describing the various types of soils eliminating personal factors (C) The first category of soil classification is based on grain size of the soil 1. a. Study of pro-drugs in solving problems related to stability, bioavailability and elegancy of formulations. The maximum pressure which a soil can carry without shear failure, is called. Choose the correct answer: Question 1. The most common chemical grout material is sodium silicate based solution which typically use an organic reactant to attain predictable gel times. At TX ProChemical Soil Stabilization, we pride ourselves on our reputation for providing high quality application services. It also includes deep mixing and grouting. MCQ Questions for Class 7 Science: Ch 9 Soils Abhishek 07 Sept, 2020 1. a) 5.0 m. b) 8.0 m. c) 10.0 m. d) 12.0 m. View Answer. Soil Class 7 MCQs Questions with Answers. This test is Rated positive by 90% students preparing for Civil Engineering (CE).This MCQ test is related to Civil Engineering (CE) syllabus, prepared by Civil Engineering (CE) teachers. The contamination or degradation of soil due to the presence of impurities like chemicals, xenobiotics, toxic wastes, plastic, etc that alters the natural composition of the soil is termed as soil pollution. Q1. Advantages of Chemical Stabilization 1) In this stabilization method, setting time and curing time can be controlled. (A) Dominant spectrum. ⇰ Soil-lime is widely used either as a modifier for clayey soil or as a binder. C: growth of crystal and frost action. ∴. Some of them are-. 6. a) Air-field pavements b) Foundations of buildings c) Pile … Q.9> Process of chemical weathering is represented by-[CDS 1991] A: expansion and contraction due to heat. The angle of internal friction is maximum for. Soil Mechanics MCQ. In essence, chemical stabilization is performed to favourably change the soil-water interactions. The main advantage of chemical stabilization is that setting time and curing time can be controlled. We have Provided Soil Class 7 Science MCQs Questions with Answers to help students understand the concept very well.

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