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  • Shear modulus and damping of natural sands

    Shear modulus and damping of natural sands Th. Tika, P. Kallioglou, A. Papadopoulou K. Pitilakis Aristotle University of Thessaloniki, Greece ... the sand particles, or the sand particles are ...

  • The effect of plastic fines on the shear modulus and ...

    Author: Ke Cheng, Jun Zhang, Yu Miao, Bin Ruan, Tao Peng
  • (PDF) Shear modulus and damping of natural sands

    An effective value equal to 0.65 of the maximum strain is then considered to modify appropriately the shear modulus value at each depth, according to G/G max -γ curves proposed for several sand ...

  • Optimization of Gradation and Fineness Modulus of ...

    Methodology • Identification of sand deposits and collection of samples. • Analysis of engineering and material properties with emphasis on grain size distribution, fineness modulus and mineralogical constituents composition. • Comparison of strength properties of natural sands in concreting. • Development of a technique ...

  • What Is The Fineness Modulus Of Natural Sand ...

    20191129As fineness modulus of sand changes from 2.0 to 2.5 there is an increase in compressive strength from 43.07 to 49.00 MPa. i.e. strength increases by 14. On the other hand by increasing Fineness Modulus from 2.5 to 3 Compressive strength increases from 49.00 to 56.83 MPa resulting in 16 increase in strength.

  • Measurement of small strain shear modulus of clean

    1. Introduction. The small strain shear modulus (G max) of soils is a key parameter in many geotechnical applications such as earthquake ground response analysis, design of machine foundations, and deep excavations , .Extensive research works have been done to study the G max of various soils such as sand, clay, and so on. Traditionally, resonant column (RC) test was most widely used because ...

  • What is Fineness Modulus of Sand (Fine Aggregate)

    2 天前  Fineness modulus of fine aggregate is 2.75. It means the average value of aggregate is in between the 2 nd sieve and 3 rd sieve. It means the average aggregate size is in between 0.3mm to 0.6mm as shown in below figure. Values of Fineness Modulus of Sand. Fineness modulus of fine aggregate varies from 2.0 to 3.5mm.

  • Shear modulus reduction of saturated sand under

    Nanjing sand as a typical kind of natural schistous quartz sand is extensively deposited along the middle and lower Yangtze River valley in China. The engineering properties of the schistous sand are quite different from those of siliceous sands. ... The degradation functions of the shear modulus of Nanjing sand in various loading stages were ...

  • The effect of plastic fines on the shear modulus and ...

    The shear modulus (G) and damping ratio (D) of two natural clays and both siliceous and carbonatic pulvially-deposited dry sands have been measured at the author's laboratary by means of a ...

  • Measurement of small strain shear modulus of clean

    Bender element (BE) tests of saturated sand have increased interest to researchers currently. However, the measurement of small strain modulus from BE

  • 砂石级配的测定英文版_百度文库

    2019-7-27  Sand can be divided into three types,named natural sand ,artificial sand and mixed sand.sand are required to have a good grading and certain fineness modulus in order to improve the workability of concrete. The grading of sand represents the distribution of sand

  • Maximum shear modulus of crushable natural

    Maximum shear modulus of crushable natural pumiceous sands ... The results showed that the Gmax of NP sands are considerably lower than that of Toyoura sand under similar relative density and σ′ c and the effect of σ′ c on Gmax is more significant for NP sands compared to Toyoura sand. With respect to Gmax - e relation, the NP sands show ...

  • Effects of Confining Pressure and Void Ratio on the ...

    The maximum shear modulus (G max) of soils is a fundamental input parameter in the non-linear dynamic analyses of soil structures.This paper focuses on the G max of natural pumiceous soils, which originated from a series of volcanic eruptions centred in the Taupo and Rotorua regions of New Zealand and were then mixed with other materials and distributed over the Waikato Region.

  • Small-Strain Stiffness of Natural Pumiceous Sand

    This paper focuses on the small-strain shear modulus (G max) of natural pumiceous (NP) sands, a type of crushable volcanic soil commonly found in the North Island of New Zealand.These sands are also compressible and lightweight, resulting in difficulty to accurately evaluate their geotechnical properties.

  • Dynamic shear modulus and damping ratio of saturated clay ...

    GUO Ying1,LUAN Maotian1,DONG Xiuzhu1,WANG Dong1.of Coastal and Offshore Engi.,Dalian Uni.of Technology,Dalian116024,China);Experimental study on dynamic modulus characteristics of sand under different stress conditions[J];Journal of Hydraulic 4

  • Effect of Fineness Modulus of Manufactured Sand on ...

    in India, natural sand deposits are being depleted and causing serious threat to environment as well as the society. This has led to several environmental issues thereby government imposing a ban on the unrestricted use of natural sand. This has resulted in the scarcity and significant rise in the cost of natural sand. Therefore, an alternative ...

  • fineness modulus of natural sand - kuulkoplin.nl

    FINENESS MODULUS OF FINE AGGREGATE SAND and SIEVE . Effect of Fineness Modulus of Manufactured Sand on Mechanical Properties of Self Compacting Concrete D Pavan Kumar 1 C Sashidhar2 1Reserach Scholar Ph D in India natural sand deposits are being depleted and causing serious threat to environment as well as the society

  • Dynamic shear modulus and damping ratio of k 0 ...

    References [1] XIE Dingyi. Soil dynamics [M]. Beijing: Higher Education Press, 2011 (in Chinese). [2] Park D. Evaluation of dynamic soil properties: strain amplitude effects on shear modulus

  • What are the basic characteristics of sand Recognizing

    2015-7-14  Sand used in concrete commodities generally coarse sand. Beijing construction market at present there are two sand: one entirely replace natural sand sand, this mechanism is small sand fineness modulus, generally below 3.0. Such as the sand of the Beijing Prosper Center uses fineness modulus of 3.0; HengKun concrete produced sand fineness ...

  • Transparent fused silica to model natural sand

    2015-5-5  Transparent fused silica to model natural sand Zhaohu Cao1, Jinyuan Liu2, and Hanlong Liu1 1Geotechnical Research Institute, Hohai University, China 2Department of Civil Engineering, Ryerson University, Canada ABSTRACT This paper presents an experimental investigation on geotechnical properties of fused silica.

  • Young's Modulus for Soil on the Geotechnical

    2012-8-1  Young's Modulus publications, software and technical guidance for the career development, information, and resources for Geotechnical Engineers. Information includes modulus of elasticiity calculations, typical elastic modulii values, average Young's modulus values with relation to soil type, including clay, sand, silt, and gravel, calculations for modulus of elasticity using undrained shear ...

  • Normalized shear modulus reduction and damping ratio ...

    2017-2-6  Normalized shear modulus reduction and damping ratio curves of quartz sand and rhyolitic crushed rock Kostas Senetakisa,n, Anastasios Anastasiadisb, Kyriazis Pitilakisb aSchool of Civil Engineering and Technology, Sirindhorn International Institute of Technology (SIIT) Thammasat University, Rangist Campus, Pathum Thani 12120, Thailand

  • Micromechanical behaviour of a polymer-coated sand

    •Polydimethylsiloxane can be utilised as a functional coating in granular materials•Micromechanics of a coated sand inve...

  • Development of a Correlation between the Resilient

    Limited supplies of natural aggregates for highway construction, in addition to increasing processing costs, time, and environmental concerns, have led to the use of various reclaimed/recycled materials. Reclaimed asphalt pavement (RAP) and recycled concrete aggregate (RCA) have prospective uses in substantial amounts in base and subbase layers of flexible pavement in order to overcome the ...

  • What is the fineness modulus of sand - Answers

    Finess Modulus is just a value (number) indicating the fineness or coarseness of the aggregate. So, a river sand (natural sand) will be in the range of2.5 or so to 2.7 and P-gravel (P-stone, Birds ...

  • requirement of crusher sand fine modulus - Impact

    Natural sand, finely crushed stone and crushed gravel are treated as “Fine Aggregates”. ... Fineness Modulus is defined as the sum of the cumulative percentages... LT displayed advanced sand manufacturing solutions - for project ...

  • IS 1542 (1992): sand for plaster

    2018-2-1  3.2 Sand A fine aggregate which is either a natural sand, crushed stone sand or crushed gravel sand. 3.3 Natural Sand A fine aggregate produced by the natural disin- tegration of rock which has been deposited by streams or glacial agencies or obtained from pits. 3.4 Crushed Stone Sand

  • Properties Of Concrete By Replacement Of Natural Sand

    2019-7-1  The natural sand having fineness modulus of 2.9 and conforming to zone II as per IS: 383-1970 [5] was used for the experimentation after washing it with clean water. The specific gravity of this natural sand was found to be 2.7. The water absorption and moisture content values obtained for the sand used was found to be 6% and 1.0% respectively. ...

  • DYNAMIC MODULUS OF ELASTICITY OF SUGAR CANE

    2018-10-31  modulus of elasticity of concrete, regardless of how it is determined, is a function of the stress intensity. Bagasse plays a major role in the generation of electricity continuously. Dry bagasse is ... offers comparatively higher strength than natural sand with or without concrete admixtures.

  • ELASTIC PROPERTIES AND POROSITY

    2001-1-30  4 0 10 20 30 40 50 60 0 0.2 0.4 0.6 0.8 1 Bulk Modulus (GPa) Porosity SOLID GLASS Frame-Supported Foam Disintegrated Foam Honeycomb Structure A critical porosity value exists which is typical for a given class of porous materials. Each class is defined on the basis of common mineralogy and/or diagenetic porosity reduction

  • ELASTIC PROPERTIES AND POROSITY

    2001-1-30  4 0 10 20 30 40 50 60 0 0.2 0.4 0.6 0.8 1 Bulk Modulus (GPa) Porosity SOLID GLASS Frame-Supported Foam Disintegrated Foam Honeycomb Structure A critical porosity value exists which is typical for a given class of porous materials. Each class is defined on the basis of common mineralogy and/or diagenetic porosity reduction

  • 顾晓强 博士

    2019-7-9  [5] 国际地震工程联合实验室ILEE项目, Investigation on the liquefaction of natural sand with fines, 2018/06-2020/12 [6] 中国矿业大学深部岩土力学与地下工程国家重点实验室开放基金,SKLGDUEK1712,深层软土K0状态力学特性的时间效应研究, 2017/01

  • Influence of seismic cyclic loading history on small strain ...

    2014-3-4  During pause interval, the pore water pressure decreases a little, and small strain shear modulus will (b) Small strain shear modulus Gmax/F(e), MPa 50 40 30 20 10 Fine sand data and fitting curve in tests without cyclic loading effects Cyclic tests data of medium

  • Art. 56. The Modulus Of Elasticity Of Cement Mortar

    2017-9-18  438. Modulus Of Elasticity Of Natural And Portland Cement Mortars. Table 141 gives the modulus of elasticity of mortars as determined by tests of twelve-inch cubes at the Watertown Arsenal.1 These specimens were a portion of those prepared by Mr. Rafter, the compressive strength being given in Table 129. As each value is the result of but one ...

  • Dynamic behaviour of undisturbed natural pumiceous

    The maximum shear modulus of natural pumiceous soil was substantially lower than hard-grained Toyoura sand. The liquefaction resistance of undisturbed natural pumiceous materials ( D r =50%) was found to be 1.6 times higher than that of medium dense pumice sand ( D r =70%) and almost twice that of dense Toyoura sand ( D r =90%).

  • What is the size of coarse sand, medium sand and fine

    2 天前  Natural sand: rock particle with the particle size < 5 mm, formed by natural conditions, and divided into river sand, sea sand, mountain sand according to its original place. The thickness of sand is divided into 4 levels on the basis of fineness modulus. Coarse sand: its fineness modulus is 3.7-3.1, the average particle size is over 0.5 mm.

  • Study on the Fluidity and Strength Properties of High ...

    Recently, it has been difficult to get natural sand for concrete due to an insufficient supply in Korea. Crushed sand was thought as a substitute and previous research has been focused on low fluidity and normal compressive strength (24–30 MPa). Study on high performance concrete using crushed sand is hardly found in Korea. In this study it was investigated that the effect of the crushed ...

  • Effect of Sand on Strain Modulus (Ev 2 ) Property of ...

    2019-7-1  Field Testing of Strain Modulus (EV2) on Natural Ground. Figure No.5 . Testing of Strain Modulus on Trail Bed. Figure No. 6 . Thereafter the applied load was released in 3 stages of 50%, 25% 2% of maximum stress with a gap of 120 seconds between

  • kolkata fineness modulus of manufactured sand

    range of fineness modulus of manufactured sand;, what is the fineness modulus of natural sand fineness modulus of natural sand in Riyadh, Ar Riyad,, Get More Info Durability Studies on Concrete with, Sand Properties - Basic Civil Engineering Questions and, The fineness modulus of sand lies in the range: a) 1-2 b) 05-1 c) 2-3 d) 25-35, M ...

  • Effect of Replacement of Natural Sand by Grit on ...

    2017-7-7  modulus and specific gravity of natural sand and grit samples used in the experimental work. Table no. 3 Sieve analysis of natural sand S. Sieve sizes Retained (gm) Retained (%) Cum. % Passing 1 4.75 mm 29.5 2.95 2.95 97.05 2 3.35 mm 19.1 1.91 4.86 95.14 3 2.36 mm 26.1 2.61 7.47 92.53 ...