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Journal articles on the topic 'Compactor weight'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Нилов, Владимир Александрович, Владимир Алексееич Жулай, Виталий Леонидович Тюнин, and Алексей Николаевич Щиенко. "HIGHWAY IMPACT STUDY OF THE EFFICIENCY OF COATING AND BASE COMPACTION WITH THREE-ROLLER TANDEM COMPACTORS." Housing and utilities infrastructure, no. 3(18) (September 29, 2021): 114–22. http://dx.doi.org/10.36622/vstu.2021.18.3.012.

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Приведено технико-экономическое обоснование повышения эффективности уплотнения покрытий и оснований за счет использования трехвальцевых дорожных катков тандемного типа. Выполнены расчеты, показывающие возможность последовательного увеличения вертикального нагружения вальцев катка по мере возрастания прочности уплотняемой поверхности в широких пределах (до 1,1 веса серийного катка) за счет применения дополнительной управляемой секции. Установлена возможность уменьшения числа проходов катка за счет увеличения количества его вальцев. Проведен технико-экономический расчет, подтверждающий целесообр

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Stępień, Justyna, Anna Chomicz-Kowalska, Magdalena Tutaj-Dudała, et al. "Influence of Compaction Methods on Properties of Roller-Compacted Concrete Pavement Wearing Surfaces." Materials 18, no. 3 (2025): 492. https://doi.org/10.3390/ma18030492.

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The present study investigates the effects of different compaction methods on the properties of roller-compacted concrete (RCC) used for road pavements. The study focuses on comparing the Proctor compaction method utilizing different compaction efforts and molds (2.5 kg rammer with three layers of 56 blows and 4.5 kg with three and five layers of 56 blows, cylindrical and cube molds) with a slab compactor in static and vibratory setting. The samples produced in a slab compactor were obtained by drilling from the prepared slab. The evaluated properties of the samples included compressive streng

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Nurul Amira Mohd Ramli, Mohd Hafiz Fazalul Rahiman, and Law Heng Yi Henry. "Design and Development of Green Trash Compactor for Recyclable Waste Management." Journal of Engineering Research and Education (JERE) 16 (January 3, 2025): 9–18. https://doi.org/10.58915/jere.v16.2024.1656.

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A trash compactor is a mechanical device invented to reduce the volume of trash, making it suitable for use in various scenes such as domestic, public, and industries. Utilizing this kind of machine provides significant benefits in the waste accumulation system, as it allows for more efficient waste management by compacting the trash, enabling larger quantities to be collected at once. In this study, a Green Trash Compactor is designed and developed as an innovative semi-automated machine to efficiently reduce the size and volume of recyclable materials such as plastics, paper cups, and PET bo

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C.M.O.Nwaiwu, J.O.Afolayan, and K.J.Osinubi. "RELIABILITY ESTIMATES OF FIELD HYDRAULIC CONDUCTIVITY OF COMPACTED LATERITIC SOILS." Continental J. Engineering Sciences 4 (July 22, 2009): 36–47. https://doi.org/10.5281/zenodo.833701.

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This paper presents results of reliability estimates of field hydraulic conductivity for compacted lateritic soils as landfill liners. The estimates were made by incorporating a predictive model for hydraulic conductivity, which was developed from field data, into a FORTRAN-based first-order reliability program. At any given reliability level, the estimated hydraulic conductivities decreased as compactor weight, plasticity index, or initial saturation increased. However, the hydraulic conductivities increased as either gravel content or clay content increased. The results also showed that, at

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Sari, Dwi Winda, Idharmahadi Adha, and Ahmad Zakaria. "Pengujian CBR Laboratorium Mengggunakan Metode Tekanan (Pressure Method) untuk Tanah Timbunan Berdasarkan Energi Pemadatan." Jurnal Rekayasa Sipil dan Desain 7, no. 1 (2019): 89–102. https://doi.org/10.23960/jrsdd.v7i1.1113.

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In building a construction related to the physical condition of the soil, this is because the land It is one of the very material plays an important role in supporting such a construction.Then had to do the testing power support basic land (subgrade) with experimental study testing the California Bearing Ratio (CBR) method of pressure (pressure method) based on the energy compaction. The research using a sample of the soil that came from the area of Tirtayasa, Kec.Sukabumi, Bandar Lampung for land fill. Implementation testing of CBR compactor modification press tool with using three soil sampl

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Thanaya, ME., PhD, I. Nyoman Arya, I. Wayan Putra Jayantara, and I. Gusti Raka Purbanto. "Study on the properties of Permanent Cold Patching (PCP)." MEDIA KOMUNIKASI TEKNIK SIPIL 26, no. 1 (2020): 36–43. http://dx.doi.org/10.14710/mkts.v26i1.28446.

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Patching road pothole can be done using Permanent Cold Patching (PCP). This research main aim was to analyze the characteristic of the PCP. PCP Super Cold Mix Asphalt was used for the experiment. The mixtures were compacted Marshall hummer in lab using, and plate compactor on site. It was obtained that: compaction temperature variation significantly affected the characteristic of the mixture. Compaction at 100°C and 150°C, met stability, porosity and VMA specification, but not for the VFB. It required more compaction energy. The stability of cold compacted mixture at the age of 1 hour gave 844

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Sara, G. Mohammed* Mohammed Y. Fattah Mohammed B. Abd Al-Jabbar. "COMPARISON BETWEEN COMPACTION OF SUBBASE MATERIAL BY PROCTOR TESTS AND SUPERPAVE GYRATORY COMPACTOR." Global Journal of Engineering Science and Research Management 6, no. 6 (2019): 1–10. https://doi.org/10.5281/zenodo.3250717.

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Proctor impact compaction tests represent the most commonly used laboratory method to determine the maximum dry unit weight and optimum moisture content of soils. One shortcoming of the Proctor test is that it uses impact loads to compact the soil in a stiff non-yielding mold. This technique may not accurately simulate modern field compaction methods so, a more appropriate method of compacting soils in the laboratory is needed. The research presented herein explores the feasibility of using a superpave gyratory compactor (SGC) to compact subbase material. The subbase is brought from Badra area

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WASSIE, Tadesse Abebe, and Gökhan DEMİR. "COMPACTION CHARACTERISTICS OF SOFT SOIL STABILIZED WITH LIME AND METAKAOLIN-BASED GEOPOLYMER." INTERNATIONAL REFEREED JOURNAL OF ENGINEERING AND SCIENCES, no. 19 (2023): 10–18. http://dx.doi.org/10.17366/uhmfd.2023.19.2.

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Aim: This study was conducted to investigate the effect of lime and metakaolin-based geopolymer on soft soil's compaction characteristics. Method: The compaction was done using an automatic soil compactor according to the ASTM-D698 testing procedure. The geopolymer synthesis was prepared in the ratio of 5%,10% and 15% of the dry weight of the soil using sodium hydroxide and sodium silicate alkali activators. In addition, lime was added in amounts of 6% of the soil's dry weight. Findings: It was discovered that soft soil had an optimum moisture content (OMC) of 26% and a maximum dry density (MD

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Poernomo, Herry. "PRELIMINARY STUDY OF THE UTILIZATION OF THE FLY ASH FROM COAL-FIRED POWER PLANT FOR IMMOBILIZATION OF RADIOACTIVE WASTE." Indonesian Journal of Chemistry 11, no. 3 (2011): 258–66. http://dx.doi.org/10.22146/ijc.21390.

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Preliminary study of the utilization of the fly ash from coal-fired power plant for immobilizing simulated radioactive waste has been done. The objective of this research was to study characteristics of pozzolanic material of the fly ash from coal-fired power plant as substitute of compactor material for immobilizing simulated radioactive waste. The experiment was carried out by mixing of the compactor materials such as (cement + lime), (cement + fly ash), (cement + fly ash + lime), (fly ash + lime) with Na2SO4 225 g/L and KCl 4.6 g/L as simulation of evaporator concentrate according to refere

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Fernando, Martínez Soto*; Gaetano Di Mino2. "IMPROVEMENTS IN THE MIX-DESIGN, PERFORMANCE FEATURES AND RATIONAL METHODOLOGY OF RUBBER MODIFIED BINDERS FOR THE THERMAL EVALUATION OF THE RAILWAY SUB-BALLAST." INTERNATIONAL JOURNAL OF RESEARCH SCIENCE & MANAGEMENT 5, no. 2 (2018): 90–108. https://doi.org/10.5281/zenodo.1175219.

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The objectives of this study are focused on the ideal methodology and the dimensioning of the railway super-structure, involving the use of a bituminous sub-ballast layer modified with recycled natural rubber tire out-of-use. The previous study of the thermal transmission in each Railtrack layer, the analysis of the traffic in high-speed lines and the revision of the thermal-mechanical models have motivated this research. An experimental methodology has been optimized for the application of the volumetric mix-design with the gyratory compactor (SGC). According to the meteorological situation a

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Sarsam, Saad I., Abeer A. Salih, and Suha Ghazi Abdullah. "Effect of Hydrated Lime on the Properties of Roller Compacted Concrete." Journal of Engineering 19, no. 3 (2023): 377–87. http://dx.doi.org/10.31026/j.eng.2013.03.07.

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Roller compacted concrete (RCC) is a concrete of no slump, no reinforcement, no finishing, and compacted using vibratory roller. When compared with conventional concrete, it contains less water contentwhen compared to traditional concrete. The RCC technique achieves significant time and cost savings during the construction of concrete. This study demonstrates the preparation of RCC slab of (38 ×38× 10) cmsamples by using roller compactor which is manufactured in local markets. The Hydrated lime additive is used to study the mechanical and physical properties of that RCC slab samples. This inve

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Lee, Su-Jin, Hyung-Jin Shin, and Chan-Gi Park. "Strength and Durability of Hybrid Fiber-Reinforced Latex-Modified Rapid-Set Cement Preplaced Concrete for Emergency Concrete Pavement Repair." Applied Sciences 11, no. 10 (2021): 4595. http://dx.doi.org/10.3390/app11104595.

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The benefits of using reinforcing fibers in latex-modified rapid-set cement preplaced concrete for emergency pavement repairs were examined in terms of strength, permeability, and durability as functions of the type of fiber. Single-type fibers, including jute, poly (vinyl alcohol) (PVA), and nylon fibers, as well as hybrid fiber mixtures prepared with two of the aforementioned fibers at a 1:1 weight ratio, were evaluated. Fibers were incorporated into the concrete mixture at 1.2 kg/m3. A vibratory press compactor that simulates roller compaction was used to increase compaction and densificati

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Abd, Alaa Husein, and Zahra Ibrahim Qassim. "Contributory Factors Related to Permanent Deformation of Hot Asphalt Mixtures." Journal of Engineering 23, no. 3 (2017): 20–34. http://dx.doi.org/10.31026/j.eng.2017.03.02.

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Permanent deformation (Rutting) of asphalt pavements which appears in many roads in Iraq, have caused a major impact on pavement performance by reducing the useful service life of pavement and creating services hazards for highway users. The main objective of this research is investigating the effect of some contributory factors related to permanent deformation of asphalt concrete mixture. To meet the objectives of this research, available local materials are used including asphalt binder, aggregates, mineral filler and modified asphalt binder. The Superpave mix design system was adopted with

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Vaško, Milan, Marián Handrik, Peter Kopas, and Bohuš Leitner. "Optimization and design of the vulcanization press sandwich pressure plate parameters." MATEC Web of Conferences 244 (2018): 01005. http://dx.doi.org/10.1051/matecconf/201824401005.

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The goal of this paper is to present the optimization of the vulcanization compactor pressure plate construction design. The basic factor for the mechanism functionality is the required stiffness compliance. The total construction stiffness has an influence on the vulcanization form tightness. Several solutions of the pressure plate have been proposed in the initial phase. Each proposal has been optimized in order to minimize the pressure plate weight meeting the conditions of the maximum displacement and the maximum allowed stress. The best solution has been chosen on the base of the evaluati

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Bratu, Polidor. "Multibody System with Elastic Connections for Dynamic Modeling of Compactor Vibratory Rollers." Symmetry 12, no. 10 (2020): 1617. http://dx.doi.org/10.3390/sym12101617.

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The dynamic model of the system of bodies with elastic connections substantiates the conceptual basis for evaluating the technological vibrations of the compactor roller as well as of the parameters of the vibrations transmitted from the vibration source to the remainder of the equipment components. In essence, the multi-body model with linear elastic connections consists of a body in vertical translational motion for vibrating roller with mass m1, a body with composed motion of vertical translation and rotation around the transverse axis passing through its weight center for the chassis of th

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Damanskiy, Roman V. "Determination of press roller parameters." Far Eastern Agrarian Herald 18, no. 3 (2024): 94–102. https://doi.org/10.22450/1999-6837-2024-18-3-94-102.

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The article presents the results of a study of the soil compactor and the reasons that violate agrotechnical requirements. The task of studying compaction rollers is presented to evaluate design flaws and search for new technical solutions to optimize the operation of tools for soil compaction. A schematic diagram of a soil compacting roller is presented, consisting of evenly spaced disks mounted on an axis, along the circumference of which there are strips that crush and compact the soil. The results of experimental studies are presented and a multifactorial model of changes in soil density i

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Zoladz, Glen V., Timothy J. McGrath, and Ernest T. Selig. "Laboratory Tests of Buried Pipe Installation Procedures." Transportation Research Record: Journal of the Transportation Research Board 1541, no. 1 (1996): 86–96. http://dx.doi.org/10.1177/0361198196154100111.

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Laboratory testing of buried pipe was conducted to evaluate the pipe-soil interactions that take place as pipes are backfilled. The program consisted of 25 tests with metal, plastic, or concrete pipe. In addition to pipe type, test variables included trench conditions, backfill material, compaction method, haunching effort, and bedding condition. The tests were conducted in an indoor test facility designed to allow for the installation of pipe in a realistic manner. Pipe and soil behavior were monitored during installation, and measurements included pipe deflections, pipe strain, pipe-soil int

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Tian, Xiaoge, Haifeng Han, Qisen Zhang, Xinwei Li, and Ye Li. "Design and Performance of Anticracking Asphalt-Treated Base." Advances in Materials Science and Engineering 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/2394945.

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To enhance the crack resistance of asphalt-treated base (ATB), a type of gapped and semiopened gradation ATB mixture, GSOG, was designed. Its design method was proposed based on the volume design method and performance tests. Firstly, several gradations were designed preliminarily in which middle particle sizes of coarse aggregates were partially or completely gapped according to the gradation specification. Secondly, their voids in coarse aggregates (VCA) were determined through dry rod compaction test on coarse aggregates, and then their theoretical voids were calculated. Gradations whose th

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Yamali, Fahrul Rozi. "ANALISA ENERGI ALAT PEMADAT TANAH LEMPUNG DILAPANGAN." Jurnal Civronlit Unbari 1, no. 1 (2016): 33. http://dx.doi.org/10.33087/civronlit.v1i1.10.

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ABSTRAK Pemadatan merupakan stabilitas tanah secara mekanis. Setelah dipadatkan, susunan partikel-partikel tanah menjadi lebih padat sehingga mempunyai sifat-sifat teknis yang lebih baik dari sebelumnyaBeberapa macam tipe alat pemadat telah dikembangkan oleh banyak pabrik. Besarnya energi pemadatan tergantung pada berat alat pemadat, tekanan dan alat pemadat yang digunakan.Alat pemadat tipe penggilas kaki kambing (sheeps’ foot roller) banyak dipakai untuk pemadatan tanah lempung, dimana alat ini memiliki kaki-kaki (pad) yang berfungsi sebagai peremas tanah yang memberikan tekanan yang lebih be

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Pan, Elizabeth, and Nina Bassuk. "Effects of Soil Type and Compaction on the Growth of Ailanthus altissima Seedlings." Journal of Environmental Horticulture 3, no. 4 (1985): 158–62. http://dx.doi.org/10.24266/0738-2898-3.4.158.

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Ailanthus altissima (Tree-of-Heaven) seedlings were grown in compacted and non-compacted mason sand and sandy loam soil. Shoots and roots were measured to characterize seedling development and response to soil compaction. Dry weight increases were shifted to lateral roots when Ailanthus tap root growth was curtailed and relative growth rate slowed in response to changes in soil type and compaction. Although total plant dry weights were 50% lower in seedlings grown in compacted soils, increases in dry weights continued to the end of the experimental period.

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Mirza, S. Idris. "Compaction of dune sand backfill by concrete shaft vibrators." Canadian Geotechnical Journal 29, no. 2 (1992): 315–21. http://dx.doi.org/10.1139/t92-035.

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Backfilling is a time-consuming operation at any construction project. Because of construction constraints and to minimize excavation and backfilling costs, utility trenches are made as narrow as practicable, which precludes the use of large compactors. The backfill is therefore placed in thin layers and compacted with hand compactors, making backfilling a slow operation. This paper presents the details of development of a fast, effective, and reliable backfill compaction procedure. This method is based on the concept that the sand being a cohesionless material can be easily densified under it

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Huschek-Juhász, E., A. Németh, M. Sysyn, G. Baranyai, J. Liu, and S. Fischer. "Testing the fragmentation of railway ballast material by laboratory methods using Proctor compactor." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 1 (February 29, 2024): 58–68. http://dx.doi.org/10.33271/nvngu/2024-1/058.

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The physical classification of crushed stone and gravel used in railway construction is based on their strength and endurance and is performed by a laboratory test method using a rotating drum or a mortar method. The values of fracture resistance calculated using the Los Angeles method and abrasion calculated using the Micro-Deval method show a corresponding correlation and require further investigation. Purpose. The development of a new method for measuring rock material fracture that is consistent with widely used standards while also being more comparable to real-world railway operating con

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Fattah, Mohammed Y., Zaynab I. Qasim, and Yaseen A. Zuhier. "Effects of Reclaimed Asphalt Pavement on Mechanical Characteristics of Asphaltic Mixtures for Surface Layer." E3S Web of Conferences 427 (2023): 03028. http://dx.doi.org/10.1051/e3sconf/202342703028.

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Reclaimed asphalt pavement (RAP) is considered one of the valuable alternatives to raw materials due to reducing the need to use raw materials, which are less in some world regions. It additionally reduces the highly-priced new bitumen required inside the asphaltic mixture manufacturing and contributes to the preservation of natural resources. To achieve maximum benefit from the integration RAP in asphaltic mixture, it is necessary to investigate the advantages and disadvantages of the recycling process on the properties of asphalt pavement. This study examines the effect of adding reclaimed a

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Onwube, A. U., N. Mashros, N. A. Yusoff, and A. O. Eberemu. "Influence of vibration on sub-ballast layer induced by loading application on a fouled track ballast." Nigerian Journal of Technology 43, no. 1 (2024): 35–43. http://dx.doi.org/10.4314/njt.v43i1.5.

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The railway track’s sub-ballast layer is important, but it is often neglected, leading to the contamination and blockage of voids, as well as track deformation and degradation. These issues occur when fouling materials infiltrate the subballast due to load-induced vibration. The purposes of this paper are to investigate the influence of vibration on the sub-ballast layer when loads are applied to a fouled ballast and to determine whether sub-ballast saturation should be ignored. A ballast box was fabricated to represent actual railway conditions and filled with 100 kg of ballast aggregates con

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Choi, Yongjin, Donghyun Ahn, Yunje Lee, and Jaehun Ahn. "Compaction Quality Monitoring of Open-Graded Aggregates by Light Weight Deflectometer and Soil Stiffness Gauge." Sustainability 12, no. 6 (2020): 2521. http://dx.doi.org/10.3390/su12062521.

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Open-graded aggregates (OGAs) are free-draining materials often used as the base layer of permeable pavements to allow the infiltration or drainage of stormwater. Despite their widespread use, the compaction quality of OGA base layers has not been specified properly. The currently used density-based compaction quality control (QC) has limitations; obtaining the field density and maximum dry density of OGAs by typical methods is challenging, due to their unique properties. To overcome these limitations, modulus-based compaction QC can be used as an alternative. In this study, five different OGA

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Buttery, B. R., C. S. Tan, and S. J. Park. "The effects of soil compaction on nodulation and growth of common bean (Phaseolus vulgaris L.)." Canadian Journal of Plant Science 74, no. 2 (1994): 287–92. http://dx.doi.org/10.4141/cjps94-056.

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As part of an investigation of factors limiting nodulation in the field, cultivars of common bean were grown in a sandy loam soil that had been either deep tilled (DT) to reduce compaction or repeatedly rolled by a golf cart or by a tractor followed by a golf cart. In 1991 and 1992, the tractor-rolling treatment was replaced by a conventional tillage system. Nineteen cultivars were grown in 1990; 10, in 1991; and 4, in 1992. In general, soil compaction decreased plant growth and yield but had no adverse effect on numbers or weights of nodules per plant. In 1990, nodule numbers and weights were

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Oyola-Guzmán, Romer D., and Rómulo Oyola-Morales. "Forensic Evaluation of Compacted Soils using RAMCODES." Civil Engineering Journal 4, no. 10 (2018): 2275. http://dx.doi.org/10.28991/cej-03091157.

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Unexpected failure of compacted soils was explained using design curves of the Rational Methodology for Compacted Geomaterial’s Density and Strength Analysis (RAMCODES). Forensic geotechnical evaluation, applied to a compacted soil used at a construction site, demonstrated that the bearing capacity of the soil was influenced by the water content and the dry unit weight. At the construction site, the only criterion used for quality control of the compacted soil was the minimum compaction percentage; the maximum dry unit weight (achieved using the standard Proctor test) was used when the soil wa

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Hakl, J., J. Šantrůček, D. Kocourková, and P. Fuksa. "The effect of the soil compaction on the contents of alfalfa root reserve nutrients in relation to the stand density and the amount of root biomass." Soil and Water Research 2, No. 2 (2008): 54–58. http://dx.doi.org/10.17221/2117-swr.

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The reserve root nutrients influence the overwintering, regrowth, yield, and persistence of alfalfa plants. The total amount of the root reserves is considered more important than their concentration. One of the factors which can affect the reserve content can be the soil compaction. The aim of this study is to clarify the effect of the soil compaction on the reserve root nutrients in relation to the stand density and the amount of the root biomass. In this experiment, the stand density ranged from 28 to 112 plants per m<sup>2</sup>. The average soil bulk density in the uncompacted

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Sawangsuriya, Auckpath, Tuncer B. Edil, and Peter J. Bosscher. "Modulus−suction−moisture relationship for compacted soils." Canadian Geotechnical Journal 45, no. 7 (2008): 973–83. http://dx.doi.org/10.1139/t08-033.

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The ultimate parameter of interest in engineering design of compacted subgrades and support fills for highways, railroads, airfields, parking lots, and mat foundations is often the soil modulus. Modulus of compacted soils depends not only on dry unit weight and moisture but also on matric suction and soil structure (or fabric) resulting from the compaction process. However, these relationships in the as-compacted state (i.e., immediately after compaction) have not yet been extensively explored. This paper presents an experimental laboratory study of the shear modulus – matric suction – moistur

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Jankovic Pantic, Jovana, Dragoslav Rakic, Irena Basaric Ikodinovic, Tina Djuric, and Gordana Hadzi-Nikovic. "Geotechnical Effects of Municipal Solid Waste Destruction with Different Compaction Methods." Proceedings of the Bulgarian Academy of Sciences 75, no. 1 (2022): 110–20. http://dx.doi.org/10.7546/crabs.2022.01.13.

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   Disposal of waste in municipal solid waste landfills is the only way of waste disposal in Serbia, with daily compaction and covering with soil material. Due to less space for the construction of new landfills, it is necessary to use their maximum capacity. Well-compacted municipal solid waste takes up less volume and enables safer storage, so it is useful to previously determine the compaction parameters in the laboratory: maximum dry unit weight (γdmax) and optimal water content (wopt). In the practice so far, the standard method has been used to obtain these parameters (

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Khalaf, Duaa A., Zaynab I. Qasim, and Karim H. Al Helo. "Effect of Modified Asphalt Cement of the Performance of Stone Matrix Mixtures." Engineering and Technology Journal 38, no. 5A (2020): 789–800. http://dx.doi.org/10.30684/etj.v38i5a.489.

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This research investigates the behavior of Stone Matrix Asphalt mixtures (SMA) modified with styrene-butadiene-styrene (SBS) polymer at four percentages (1, 2, 3 and 4%) by weight of asphalt cement. The moisture susceptibility and rutting were taken into consideration in this study. To achieve the objective of this research the superpave system is conducted to design the asphalt mixtures. The physical properties of aggregate, bitumen and other mix materials were assessed and evaluated with the laboratory tests. The mixtures were prepared using penetration Graded (40-50) bitumen and a chemical

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Opic, Bohumír, and Petr Gurka. "$A_r$-condition for two weight functions and compact imbeddings of weighted Sobolev spaces." Czechoslovak Mathematical Journal 38, no. 4 (1988): 611–17. http://dx.doi.org/10.21136/cmj.1988.102257.

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Setev, Nyamdorj, Adiyajav Ganbold, and Sarantuya Janlav. "Field test of compactability of soaked subsidence soil using heavy tamper." E3S Web of Conferences 535 (2024): 01019. http://dx.doi.org/10.1051/e3sconf/202453501019.

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Dynamic compaction, including heavy compaction, is a widespread method throughout the world for improving the physical and mechanical characteristics of subsidence and low-density soils. The results of theoretical and experimental studies have established that the depth of compaction and the density of compacted soils depend on the weight, shape of the bottom, the height of the tamper and humidity, the type of structural connection, and the granulometric composition of the compacted soil. This article discusses the results of compaction with a heavy tamper when soaking loess-like subsidence so

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Fair, Barbara, James Metzger, and James Vent. "Characterization of Physical, Gaseous, and Hydrologic Properties of Compacted Subsoil and its Effects on Growth and Transpiration of Two Maples Grown Under Greenhouse Conditions." Arboriculture & Urban Forestry 38, no. 4 (2012): 151–59. http://dx.doi.org/10.48044/jauf.2012.023.

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City foresters and horticulturists often seek trees suited for urban conditions. Two maples often used were selected to assess response to compacted soil: ‘Armstrong’ Freeman maple and ‘Brandywine’ red maple. Soil physical parameters were assessed to determine effects of high density on movement of gas and water. Rigid-walled lysimeters constructed from polyvinyl chloride pipe were filled with clay subsoil compacted to 1.64 g·cm-3 (MODERATE-density) and 1.78 g·cm-3 (HIGH-density). Compaction decreased total porosity and saturated hydraulic conductivity. In addition, CO2 concentrations in compa

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KILIÇ, İsmail. "EFFECT OF COMPACTION TIME WITH VIBRATING HAMMER ON STRENGTH PROPERTIES IN ROLLER COMPACTED CONCRETE." Euroasia Journal of Mathematics, Engineering, Natural & Medical Sciences 9, no. 20 (2022): 46–54. http://dx.doi.org/10.38065/euroasiaorg.927.

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Roller compacted concrete (RCC) production in the laboratory using a vibrating hammer is one of the methods used in research studies. In this method, it is thought that the compaction time will change the strength properties of the RCC samples. For this reason, it is aimed to determine the ideal compaction time in terms of strength by producing RCC samples with different compaction times. In the experimental study, RCC samples with the same mixture design were compacted with a vibrating hammer for 5, 10, 15 and 20 seconds at different times. Compactibility percentage, unit weight, water absorp

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Baharudin, Noor Hasnida, Anuar Kasa, Zamri Chik, Azlan Adnan, and Taha Mohd Raihan. "Preparation of Residual Soil Samples by Using Modified Method." Advanced Materials Research 163-167 (December 2010): 4470–73. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.4470.

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The purpose of this study was to establish an alternative method in preparing the residual soil samples for laboratory tests. The soil was compacted by using the modified method in order to get the desired values of dry unit weight that was equivalent to the values obtained from standard compaction method. The advantage of using this method was that, due to its larger size, more samples could be taken and tested under the same compaction condition and the mould could be directly mounted on the shaking table with the addition of the air bags to avoid the occurrence of boundary effects. The soil

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Wilczyński, Dominik, Maciej Berdychowski, Dominik Wojtkowiak, Jan Górecki, and Krzysztof Wałęsa. "Experimental and numerical tests of the compaction process of loose material in the form of sawdust." MATEC Web of Conferences 254 (2019): 02042. http://dx.doi.org/10.1051/matecconf/201925402042.

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The paper presents experimental investigations of the compaction process of loose material in the form of sawdust. These were compacted in the sleeve-punch assembly adapted for installation on a strength testing machine. Sawdust was compacted with a force suitable to obtain the desired compressive stress in the sample cross-section. The effect of the composition of the compacted sample was investigated by adding pine sawdust to 50% of the total sample's weight. The experimental compaction process was simulated by building its numerical model using the Drucker-Prager-Cap model. Obtained results

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Grabosky, Jason, Nina Bassuk, and Harold von Es. "Testing of Structural Urban Tree Soil Materials for use Under Pavement to Increase Street Tree Rooting Volumes." Arboriculture & Urban Forestry 22, no. 6 (1996): 255–63. http://dx.doi.org/10.48044/jauf.1996.039.

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Quercus robur seedlings were grown in compacted stone-soil mixes known to meet engineering standards for pavement base compaction and strength. Root penetration into these materials was greatly increased in comparison to an equally compacted clay loam, which was also a component of the test material. Oak root penetration in the clay loam decreased 50%, from 6 to 3 g dry root weight, as the bulk density increased from 1.24 to 1.55 Mg/m3. Severe root impedance was observed when clay loam bulk densities exceeded 1.5 Mg/m3 (90% standard AASHTO peak density),a situation produced after 20% of the st

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Randrup, Thomas, and John Lichter. "Measuring Soil Compaction on Construction Sites: A Review of Surface Nuclear Gauges and Penetrometers." Arboriculture & Urban Forestry 27, no. 3 (2001): 109–17. http://dx.doi.org/10.48044/jauf.2001.013.

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This paper reviews two techniques of determining soil compaction on construction sites. The surface nuclear gauge is found suitable for measuring soil compaction in soils with less than 5% organic matter by weight and at a depth of no more than 0.15 m (6 in.). Penetrometer readings are often unreliable on compacted soils, as well as in dry and stony soil conditions. Therefore, the penetrometer is rarely a valuable device on construction sites as a definitive measurement instrument, but it may be useful as an indicator of compacted areas. Recommendations to measure soil compaction on constructi

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CHINDAPRASIRT, Prinya, Apichit KAMPALA, Anukun ARNGBUNTA, and Suksun HORPIBULSUK. "Prediction of Compaction Parameters of Khon Kaen Loess Soil." Walailak Journal of Science and Technology (WJST) 17, no. 12 (2020): 1367–78. http://dx.doi.org/10.48048/wjst.2020.10732.

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Soil stratum in Khon Kaen province, located in Northeast of Thailand, is well-known as a wind-deposited fine-grained soil (i.e. silty sand and silty clay). It is normally called “Loess or Khon Kaen Loess”. This soil in disturbed stage is usually extracted from the borrow pit and subsequently compacted for infrastructure applications. The compaction resulted in silty sand or silty clay aggregation with unpredictable properties. Although required for infrastructure design, studies on Khon Kaen Loess are limited. Thus, this research examines the compaction behavior and predicts soil parameters at

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Conlin, T. S. S., and R. van den Driessche. "Short-term effects of soil compaction on growth of Pinuscontorta seedlings." Canadian Journal of Forest Research 26, no. 5 (1996): 727–39. http://dx.doi.org/10.1139/x26-082.

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A growth chamber experiment was conducted with Pinuscontorta Dougl. ex Loud. var. latifolia Engelm. seedlings grown in soil compacted at 0.1, 2.0, 4.0, 6.0, and 8.0 MPa pressure. Three moisture regimes were applied factorially to compaction levels by watering from above or by maintaining 2- or 10-cm water tables at the base of the 40-cm soil columns. All treatments were grown at either 22:14 °C or 26:18 °C (light:dark) for 13 weeks. Soil compaction increased bulk density, penetrometer resistance, and soil CO2 and ethylene. The presence of water tables resulted in elevated soil gravimetric wate

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Fair, Barbara, James Metzger, and James Vent. "Response of Eight Maple Cultivars (Acer spp.) to Soil Compaction and Effects of Two Rates of Pre-plant Nitrogen on Tree Establishment and Aboveground Growth." Arboriculture & Urban Forestry 38, no. 2 (2012): 64–74. http://dx.doi.org/10.48044/jauf.2012.011.

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This study assessed soil compaction effects on aboveground growth of maple cultivars, and compared two nitrogen rates applied pre-planting for their influence on establishment and growth of trees planted into compacted soils. Eight commonly used maple cultivars of Acer rubrum and Acer × freemanii were evaluated. During container production, plants received either 25 or 100 mg·L-1 nitrogen through fertigation twice per day. Trees were planted into non-compacted field plots with a mean bulk density of 1.40 g·cm-3, or into compacted plots with a mean bulk density of 1.60 g·cm-3. In 2002, research

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Oddiraju, Venu G., and Caula A. Beyl. "ROOT GROWTH OF SEEDLINGS AND MICROCUTTINGS OF PRUNUS SEROTINA VAR. VIRENS AS A FUNCTION OF COMPACTION." HortScience 28, no. 5 (1993): 528b—528. http://dx.doi.org/10.21273/hortsci.28.5.528b.

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Chisos cherry seedlings and microcuttings of two lines, one characterized by a profuse and the other a scant root system, were grown in compacted soils to study differences in their root development using an Image Capture and Analysis System (ICAS). Seedlings and microcuttings showed significant difference with respect to coarse root surface area, fine root surface area and root dry weight before they were placed under different compaction treatments (P<0.05). When final observations were made at 30 weeks, the compaction significantly restricted the growth of surface area of coarse roots an

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Gaudenzi, Elena. "Performance Analysis of Bio-Based Asphalt Mixtures Containing Lignin." European Transport/Trasporti Europei, no. 91 (February 2023): 1–12. http://dx.doi.org/10.48295/et.2023.91.1.

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Given the need to promote the circular economy and sustainability, one of the main current trends in road materials construction is to employ industrial residues and by-products deriving from renewable sources as extender, replacement or modifier of bitumen, obtaining the so-called “bio-binders”. As regards, lignin can represent a potentially attractive solution, because it is the most abundant natural biopolymer, available in large quantity and characterized by certain chemical similarity with bitumen. In this context, this study focuses on the evaluation of two dense-grade asphalt mixtures f

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Gill, J. S., S. Hunt, K. Sivasithamparam, and K. R. J. Smettem. "Root growth altered by compaction of a sandy loam soil affects severity of rhizoctonia root rot of wheat seedlings." Australian Journal of Experimental Agriculture 44, no. 6 (2004): 595. http://dx.doi.org/10.1071/ea02093.

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Rhizoctonia solani Anastomosis Group 8 damages seedling roots of wheat, causing the 'bare-patch' disease. This makes the first 4 weeks after germination the most critical period for disease development. As the field inoculum of the pathogen is mainly concentrated in the surface 10 cm of soil, the rate of root growth becomes critical for the vulnerable tissues of the root to escape the attack from the inoculum zone. To evaluate the effect of alteration of root growth by soil compaction on disease severity, a study was undertaken in 40-cm-deep pots made from PVC pipes (8.7 cm diameter). Four dep

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Ferree, D. C., J. G. Streeter, and Y. Yuncong. "Response of Container-grown Apple Trees to Soil Compaction." HortScience 39, no. 1 (2004): 40–48. http://dx.doi.org/10.21273/hortsci.39.1.40.

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Container-grown apple (Malus ×domestica Borkh.) trees were exposed to soil compaction created by changing soil bulk density (SBD) to determine the effect of compaction levels, rootstock, and moisture stress on mineral nutrition, leaf gas exchange, and foliar carbohydrate levels. With SBD of 1.0, 1.2, and 1.4 g·cm-3, there was no interaction of rootstock and soil compaction for growth of `Melrose' trees on nine rootstocks. Trees grown in a SBD of 1.2 g·cm-3 had a greater dry weight than trees at 1.4 g·cm-3 bulk density. Increasing SBD to 1.5 g·cm-3 reduced shoot length, total leaf area, leaf si

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Correia, Natalia de Souza, and Sabrina Andrade Rocha. "Reinforcing effect of recycled polypropylene fibers on a clayey lateritic soil in different compaction degrees." Soils and Rocks 44, no. 2 (2021): 1–11. http://dx.doi.org/10.28927/sr.2021.061520.

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The present research investigates the reinforcing effect of recycled polypropylene (R-PP) fibers on a compacted clayey lateritic soil in different compaction degrees. R-PP fibers of 12 mm length were mixed with the soil in the contents of 0.1 and 0.25% of soil dry weight. Unconfined compression strength tests (UCS), direct shear tests and indirect tensile strength (ITS) tests were conducted. Fibers addition showed no significate alterations in the optimum compaction parameters. The study evidenced increases in UCS, changing the soil behavior from a brittle failure to a ductile failure, while f

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Liu, Jia, Rong Hui Zhang, and Can Qiang Mai. "Application of Vibration Test Methods in Cement-Treated Aggregate." Advanced Materials Research 308-310 (August 2011): 980–86. http://dx.doi.org/10.4028/www.scientific.net/amr.308-310.980.

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The disease causes by the application of cement-stabilized macadam in our country first-class highway mainly performance as serious shrinkage fracture and other destructions like decreased capacity etc.This mainly related to test, design and other methods of the cement stabilized macadam. In the cement stabilization granular base construction,according to the standard job practice, uses the inorganic binding stable material compaction test to perform the standard compaction test. Doing compactness test at the scene, always present that the dry weight density is bigger than the maximum value re

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Ferree, D. C., and J. G. Streeter. "Response of Container-grown Grapevines to Soil Compaction." HortScience 39, no. 6 (2004): 1250–54. http://dx.doi.org/10.21273/hortsci.39.6.1250.

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Container-grown `Chambourcin' grapevines were exposed to soil compaction created by changing soil bulk density to determine the effect of levels of compaction, rootstocks and moisture stress on mineral nutrition, leaf gas exchange and foliar carbohydrate levels. Shoot growth, leaf area, number of inflorescences and leaf dry weight decreased linearly as soil bulk density increased with the effects being significant above 1.4 g·cm-3. The early season leaf area was reduced 40% in the second season, but later leaves were unaffected by a soil bulk density of 1.5 g·cm-3. Net photosynthesis (Pn) and

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Hassan, Asem. "Influence of Compaction on Electrical Resistivity Characteristics of Fine-grained Soil East of Baghdad City, Iraq." Earth Sciences Research Journal 27, no. 2 (2023): 169–82. http://dx.doi.org/10.15446/esrj.v27n2.107646.

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In geotechnical practice, there is a continuous demand for an efficient method for measuring the soil moisture content and dry unit weight of compacted soils used in a wide range of earthwork constructions. The Electrical Resistivity method has increasingly been used for rapid and non-invasive assessment of some geotechnical properties. This study aims to evaluate the influence of Moisture Content (MC), Dry Unit Weight (DUW), and Compaction Energy (E) on the Electrical Resistivity (ER) of soil collected from the east of Baghdad City, Iraq. To achieve this goal, soil specimens were compacted to

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