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Journal articles on the topic 'The compressive strength'

Author: Grafiati

Published: 4 June 2021

Last updated: 3 February 2022

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1

Qin, Li Kun, Ling Xia Gao, and Hong Wei Song. "Influence of Freeze-Thaw Cycles on Multiaxial Strength of Concrete." Applied Mechanics and Materials 405-408 (September 2013): 2715–18. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.2715.

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Mechanical properties experiments of concrete after 0, 25, 50 and 75 freeze-thaw cycles under uniaxial and multiaixial compression were carried out. The uniaxial and multiaxial compressive strengths of ordinary concrete after freeze-thaw cycles were measured. According to the experiment results, the influence of freeze-thaw cycles on the ultimate compressive and tensile strength was analyzed systematically. The influence law of freeze-thaw cycles on compressive strength of concrete under multiaxial compression was obtained. The results indicate that the compressive strength of ordinary concret

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2

Yan, Feng, and Nan Pang. "Low Strength Self Compacting Concrete Compressive Strength Test." Applied Mechanics and Materials 275-277 (January 2013): 2041–44. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2041.

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In this paper,the mechanical properties were studied,the self compacting concrete cubic compression strength,prismatic compressive strength test,discussed two kinds of relationship between intensity index.

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3

Tu, Nhung Hong, and Cong Thanh Nguyen. "ASSESSMENT OF TENSILE STRENGTH OF CONCRETE IN ACCORDANCE WITH ITS COMPRESSIVE STRENGTH." Scientific Journal of Tra Vinh University 1, no. 41 (2020): 86–96. http://dx.doi.org/10.35382/18594816.1.41.2020.647.

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Concrete is the primary material used in construction. The importance of concrete is shown through its strength criteria which are indispensable in all structural designs of the engineers. This article is to determine the tensile strength of concrete according to the compressive strength through an experimental study for thestrength grade B15, B20, B25 of concrete. In this study, tensile and compressive strength of concrete were determined by tensile test and compression test on the same sample. The experimental results show that the tensile strength of concrete is much smaller than its compre

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4

Ren, Gen-Mao, Hao Wu, Qin Fang, and Xiang-Zhen Kong. "Parameters of Holmquist–Johnson–Cook model for high-strength concrete-like materials under projectile impact." International Journal of Protective Structures 8, no. 3 (2017): 352–67. http://dx.doi.org/10.1177/2041419617721552.

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Holmquist–Johnson–Cook constitutive model has been widely used in analyzing the dynamic responses of concrete-like materials under projectile impact and explosive loadings, the constitutive parameters of which were always referred from the original documents and only applied to the normal strength concrete with the compressive strength of 48 MPa. Aiming to confirm the Holmquist–Johnson–Cook model parameters for high-strength concrete-like materials (compressive strength ≥60 MPa), based on the available test data from the quasi-static uniaxial compression, triaxial compression, Split-Hopkinson

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5

Li, Yeou-Fong, Wai-Keong Sio, Tzu-Hsien Yang, and Ying-Kuan Tsai. "A Constitutive Model of High-Early-Strength Cement with Perlite Powder as a Thermal-Insulating Material Confined by Caron Fiber Reinforced Plastics at Elevated Temperatures." Polymers 12, no. 10 (2020): 2369. http://dx.doi.org/10.3390/polym12102369.

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A parabolic stress–strain constitutive model for inorganic thermal-insulating material confined by carbon fiber-reinforced polymer (CFRP) exposed to a surrounding elevated temperature was proposed in this paper. The thermal-insulating material used in this study was composed of high-early-strength cement (HESC) and perlite powder. The compression strengths of four kinds of perlite powder composition ratios of thermal-insulating materials cylindrical specimens which were confined by one, two, and three-layer CFRP composite materials were acquired. The experimental results showed that the compre

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6

PUHAKKA, TEEMU, ISKO KAJANTO, and NINA PYKÄLÄINEN. "A method for measuring the in-plane compressive strength and the compression behavior of coating layers." July 2011 10, no. 7 (2011): 29–34. http://dx.doi.org/10.32964/tj10.7.29.

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Cracking at the fold is a quality defect sometimes observed in coated paper and board. Although tensile and compressive stresses occur during folding, test methods to measure the compressive strength of a coating have not been available. Our objective was to develop a method to measure the compressive strength of a coating layer and to investigate how different mineral coatings behave under compression. We used the short-span compressive strength test (SCT) to measure the in-plane compressive strength of a free coating layer. Unsupported free coating films were prepared for the measurements. R

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Li, Yeou-Fong, Wai-Keong Sio, and Ying-Kuan Tsai. "A Compressive Peak Strength Model for CFRP-Confined Thermal Insulation Materials under Elevated Temperature." Materials 13, no. 1 (2019): 26. http://dx.doi.org/10.3390/ma13010026.

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In this paper, a compressive peak strength model for CFRP-confined thermal insulation materials under elevated temperature was proposed. The thermal insulation material was made by Portland cement with different portions of perlite. The compressive strengths of four different perlite ratios in weight, such as 0%, 10%, 20%, and 30% of thermal insulation materials, confined by one-layer, two-layer, and three-layer carbon fiber-reinforced polymer (CFRP) composite materials, were obtained. The test results indicated that the specimen’s compressive strength decreased with an increase in the amount

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8

Zhang, Huizhi, Jifeng Liu, Yang Yue, Xiuqin Cui, and Yuezong Lian. "Load Capacity and Displacement of Recycled Concrete and Self-Insulation Block Masonry Wall." Materials 13, no. 4 (2020): 863. http://dx.doi.org/10.3390/ma13040863.

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In order to discuss the load capacity and displacement of masonry constructed with recycled concrete and self-insulation blocks, one type of 10.6 MPa compressive strength block and three kinds of mortar with M15, M10, and M5 compressive strengths are selected. The constitutive model and corresponding parameters selection of different materials in the ABAQUS numerical simulation are analyzed, and the numerical simulation analysis and experimental tests of the load capacity and displacement of masonry constructed with mortars of different strengths are carried out. The results show that masonry

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9

Narloch, Piotr, Piotr Woyciechowski, Jakub Kotowski, Ireneusz Gawriuczenkow, and Emilia Wójcik. "The Effect of Soil Mineral Composition on the Compressive Strength of Cement Stabilized Rammed Earth." Materials 13, no. 2 (2020): 324. http://dx.doi.org/10.3390/ma13020324.

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Cemented stabilized rammed earth (CSRE) is a building material used to build load bearing walls from locally available soil. The article analyzes the influence of soil mineral composition on CSRE compressive strength. Compression tests of CSRE samples of various mineral compositions, but the same particle size distribution, water content, and cement content were conducted. Based on the compression strength results and analyzed SEM images, it was observed that even small changes in the mineral composition significantly affected the CSRE compressive strength. From the comparison of CSRE compress

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10

Zheng, Shansuo, Lihua Niu, Pei Pei, and Jinqi Dong. "Mechanical Behavior of Brick Masonry in an Acidic Atmospheric Environment." Materials 12, no. 17 (2019): 2694. http://dx.doi.org/10.3390/ma12172694.

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In order to evaluate the deterioration regularity for the mechanical properties of brick masonry due to acid rain corrosion, a series of mechanical property tests for mortars, bricks, shear prisms, and compressive prisms after acid rain corrosion were conducted. The apparent morphology and the compressive strength of the masonry materials (cement mortar, cement-lime mortar, cement-fly ash mortar, and brick), the shear behavior of the masonry, and the compression behavior of the masonry were analyzed. The resistance of acid rain corrosion for the cement-lime mortar prisms was the worst, and the

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11

Yin, Yu Ting, Lian Yong Wang, and Jiu Ju Cai. "Study on Influence Factors to the Biomass Compression Process." Applied Mechanics and Materials 71-78 (July 2011): 2939–43. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.2939.

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The principle of biomass briquetting, the advantages and disadvantages of biomass briquette machine and the current research status were introduced in this paper. The influence of the four factors biomass particle size, moisture, pressure and compression speed to formation density and compressive strength was summarized, by orthogonal test method. The results show that, the influence of biomass size to the formation density is largest and to the compressive strength is least. The biomass size in the range of<40 mesh is best. The influence of compressing speed to compressive strength is larg

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12

Brandão, Letícia, Gelson Luis Adabo, Luís Geraldo Vaz, and José Roberto Cury Saad. "Compressive strength and compressive fatigue limit of conventional and high viscosity posterior resin composites." Brazilian Oral Research 19, no. 4 (2005): 272–77. http://dx.doi.org/10.1590/s1806-83242005000400007.

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The purpose of this study was to compare the compressive strengths and compressive fatigue limits of three posterior composite resins (Filtek P-60, Surefil and Prodigy Condensable) and a universal restorative composite (Z-100). Cylindrical specimens (8 mm in length x 4 mm in diameter) were used. The dynamic test was performed using the staircase method, and the ratio between compressive fatigue limit and compressive resistance was also calculated (n = 15). The compressive strength and compressive fatigue limit data were analyzed by Anova and Tukey’s test. The Z-100 composite demonstrated highe

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13

Memon, Imtiaz Ahmed, Ashfaque Ahmed Jhatial, Samiullah Sohu, Muhammad Tahir Lakhiar, and Zahid Hussain Khaskheli. "Influence of Fibre Length on the Behaviour of Polypropylene Fibre Reinforced Cement Concrete." Civil Engineering Journal 4, no. 9 (2018): 2124–31. http://dx.doi.org/10.28991/cej-03091144.

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Concrete being a mixture of cement, aggregates (fine and coarse) and water, can be used in vast range of applications. It has excellent durability and availability which are its main advantages. Though, concrete is strong in compression it is comparatively weak in tensile loading. Over the years various materials have been used to reinforce concrete to withstand the tensile stresses. Polypropylene fibre is one such fibre which comes in varied sizes, is nowadays being utilized to reinforce concrete. In this study, three PP fibres were used at 0.20%, 0.25% and 0.30% content by weight. The flexur

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14

Kumar, Arvind, Baljit Singh Walia, and Jatinder Mohan. "Compressive strength of fiber reinforced highly compressible clay." Construction and Building Materials 20, no. 10 (2006): 1063–68. http://dx.doi.org/10.1016/j.conbuildmat.2005.02.027.

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15

Fam, M. A., and M. B. Dusseault. "Effect of unloading duration on unconfined compressive strength." Canadian Geotechnical Journal 36, no. 1 (1999): 166–72. http://dx.doi.org/10.1139/t98-074.

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This note examines the effect of unloading duration on unconfined compression test results. Artificial clayey specimens were prepared using the slurry consolidation technique. Extracted specimens were loaded vertically under K0 conditions, and the load was kept constant until the end of primary consolidation. Specimens were unloaded and unconfined compression tests were carried out at different times after unloading. It is observed that the longer the unloading duration, the lower the measured unconfined strength. This behavior is attributed to the presence of negative excess pore pressure tha

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16

Makrides-Saravanos, Elli, and T. Rezansoff. "The effect of a chloride-based accelerating admixture on the tensile strength of concrete." Canadian Journal of Civil Engineering 12, no. 3 (1985): 673–84. http://dx.doi.org/10.1139/l85-074.

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Compression and tension tests were performed on specimens made from high-early-strength concrete, where the strength acceleration was achieved by using a chloride-based accelerating admixture. Comparison with specimens made from concrete without the admixture showed that the concrete with the admixture was significantly weaker in tension for equal compressive strength.Curing times ranged from 3 days to 3 or 4 months while compressive strengths ranged from 16 to 37 MPa depending on the batch and the age at testing. Three types of tension tests, the standard split cylinder test, the standard mod

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17

TEKİN, İlker. "An In-Situ Study on The Specimen Size Effects on Compressive Strength for Different Strength Concretes." CEBACOM Vol:1 Issue 3 1, no. 3 (2021): 7–10. http://dx.doi.org/10.36937/cebacom.2020.003.002.

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The compressive strength of concrete is the most basic and considerable material property while reinforced concrete structures are designed. It has become a problem to use this value, however, because the control specimen sizes and shapes from country to country may be dissimilar. The study presents the results of an experiment that examined the effect of specimen size on the different classes of compressive strengths of concrete. The study included casting specimens, cubes, and six different classes of the concrete mixture. Compression tests were conducted at the age of 3, 7, and 28 days on 1

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18

Sharma, Anil kumar, and Dr Bharat Nagar. "Compressive Strength of Conventional Concrete Using E Waste." International Journal of Trend in Scientific Research and Development Volume-1, Issue-5 (2017): 374–79. http://dx.doi.org/10.31142/ijtsrd2308.

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19

Cui, Feng-kun, Huai-shuai Shang, Tie-jun Zhao, Guo-xi Fan, and Guo-sheng Ren. "Mechanical and Failure Criteria of Air-Entrained Concrete under Triaxial Compression Load after Rapid Freeze-Thaw Cycles." Advances in Materials Science and Engineering 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/6786270.

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The experiment study on the air-entrained concrete of 100 mm cubes under triaxial compression with different intermediate stress ratioα2=σ2D : σ3Dwas carried out using a hydraulic-servo testing system. The influence of rapid freeze-thaw cycles and intermediate stress ratio on the triaxial compressive strengthσ3Dwas analyzed according to the experimental results, respectively. The experimental results of air-entrained concrete obtained from the study in this paper and the triaxial compression experimental results of plain concrete got through the same triaxial-testing-system were compared and a

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20

Urbański, Marek. "Compressive Strength of Modified FRP Hybrid Bars." Materials 13, no. 8 (2020): 1898. http://dx.doi.org/10.3390/ma13081898.

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A new type of HFRP hybrid bars (hybrid fiber reinforced polymer) was introduced to increase the rigidity of FRP reinforcement, which was a basic drawback of the FRP bars used so far. Compared to the BFRP (basalt fiber reinforced polymer) bars, modification has been introduced in HFRP bars consisting of swapping basalt fibers with carbon fibers. One of the most important mechanical properties of FRP bars is compressive strength, which determines the scope of reinforcement in compressed reinforced concrete elements (e.g., column). The compression properties of FRP bars are currently ignored in t

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21

Zhang, Li Min, Zhi Jun Li, Qing Jia, Guang Wei Li, and Wen Feng Huang. "Uniaxial Compressive Strengths of Artificial Freshwater Ice." Advanced Materials Research 243-249 (May 2011): 4634–37. http://dx.doi.org/10.4028/www.scientific.net/amr.243-249.4634.

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The uniaxial compression test was performed on artificial freshwater ice with a precise control-temperature unit compression tester of ice under -5, -10, -15, -20 and-30°C temperatures and strain rates ranging from 10-8 to 10-2 s-1. The loading direction was parallel to ice surface. The results showed that the compressive strength was very sensitive to the strain-rate. The uniaxial compressive strengths reached the maximum value at the ductile-brittle transition region, and the region was gradually close to the lower strain-rate with the decreasing temperature of test. Both the strain-rate and

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22

Yan, Chang Wang, Jin Qing Jia, Ju Zhang, and Rui Jiang. "Compressive Strength and Splitting Tensile Strength of Polyvinyl Alcohol Fiber Reinforced Ultra High Strength Concrete (PFRC)." Advanced Materials Research 150-151 (October 2010): 996–99. http://dx.doi.org/10.4028/www.scientific.net/amr.150-151.996.

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The marked brittleness with low tensile strength and strain capacities of ultra high strength concrete (UHSC) with compressive strength of 100 MPa can be overcome by the addition of polyvinyl alcohol (PVA) fibers. The compressive strength and splitting tensile strength of ultra high strength concrete containing PVA fibers are investigated this paper. The PVA fibers were added at the volume fractions of 0%, 0.17%, 0.25%, 0.34% and 0.5%. The compressive strength of the PVA fiber reinforced ultra high strength concrete (PFRC) reached a maximum at 0.5% volume fraction, being an 8.2% improvement ov

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23

Wei, Hui, Yang Liu, Tao Wu, and Xi Liu. "Effect of Aggregate Size on Strength Characteristics of High Strength Lightweight Concrete." Materials 13, no. 6 (2020): 1314. http://dx.doi.org/10.3390/ma13061314.

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Effects of aggregate size on the mechanical properties of lightweight concrete (LC) were investigated. Four gradings of lightweight aggregate (LWA) were designed and used to prepare the specimens for compressive strength, splitting tensile strength, and flexural strength tests. An estimating method for compressive strength of LC was then established. The compressive strength of tested LC was up to 95 MPa at 90-day curing time. The test results suggested that the absence of medium-size particles decreased the compaction of LC, therefore the density and compressive strength were negatively affec

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24

Wan, Xiaopeng, Guangmeng Yang, and Meiying Zhao. "Influence of Fiber Distribution and Interfacial Strength on Transverse Compressive Strength of Unidirectional Composites." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 37, no. 3 (2019): 443–48. http://dx.doi.org/10.1051/jnwpu/20193730443.

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The representative volume element(RVE) of the computational micromechanics is established with random fiber distribution being generated by random sequential expansion algorithm. The plasticity of matrix and interfacial decohesion are simulated by using Drucker-Prager model and cohesive zone model respectively. The effects of the random fiber distribution and interfacial strength on the transverse compressive strength of unidirectional composites are analyzed. The results show that the random fiber distribution is a factor to cause the instability of the transverse compressive strength. Meanwh

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25

Xia, Wei, Erlei Bai, Jinyu Xu, and Gaojie Liu. "Experimental Study on the Strength and Deformation Characteristics of Concrete under True Triaxial Compression after Sulfate Attack." Advances in Civil Engineering 2021 (April 14, 2021): 1–15. http://dx.doi.org/10.1155/2021/5548313.

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To explore the mechanical properties of concrete under true triaxial static compressive load after sulfate attack, uniaxial static compression test and true triaxial static compression test at four stress ratios were carried out on concrete specimens immersed in 15% sulfate solution for 0–120 days by the integrated true triaxial static and dynamic load testing system, and the variation of performance indicators such as the strength and deformation of concrete under the coupling action of sulfate attack and complex stress state was analyzed. The results show that the uniaxial compressive streng

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26

Lv, Qing Fang, Ji Hong Qin, and Ran Zhu. "Size Effect on Mechanical Properties of LVL." Advanced Materials Research 887-888 (February 2014): 824–29. http://dx.doi.org/10.4028/www.scientific.net/amr.887-888.824.

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Laminated veneer lumber is taken as an object of study, and use LVL specimens of different sizes for compression test and tensile test. The goal of the experiment is to investigate the size effect on compressive strength and tensile strength as well as the influence of the secondary glued laminated face, which appears in the secondary molding processes. The results show that both compressive strength and tensile strength have the size effect apparently and the existence of the secondary glued laminated face lower the compressive strength of LVL specimens. Afterwards, the relationship between c

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27

Santos, Olavo Francisco, João Paulo da Silva Costa, and Francisco Mateus Gomes Lopes. "Compressive and Tensile Strength of Artificially Cemented Dune Sand." Applied Mechanics and Materials 343 (July 2013): 51–61. http://dx.doi.org/10.4028/www.scientific.net/amm.343.51.

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Artificial cementation is a technique commonly used to improve the mechanical properties of soils for use in geotechnical engineering works, because it often provides economic and environmental advantages. In order to study the factors that influence the behavior of cemented dune sand from Natal, series of unconfined compression and splitting tension tests were performed. These tests showed that increasing the cement content and decreasing void ratio are effective ways to improve compressive strength. The same applies to tensile splitting strength. It was also established that both unconfined

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28

Saud, Abdullah F., Hakim S. Abdelgader, and Ali S. El-Baden. "Compressive and Tensile Strength of Two-Stage Concrete." Advanced Materials Research 893 (February 2014): 585–92. http://dx.doi.org/10.4028/www.scientific.net/amr.893.585.

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An experimental investigation was conducted to evaluate the compressive, tensile strength and modulus of elasticity of two-stage concrete (TSC) at different water-to-cement ratios. The primary objectives were to measure the elastic modulus, compressive strength and splitting tensile strength of TSC and to determine if there is a quantifiable relationship between compressive and tensile strength. Behavior of TSC in compression has been well documented, but there are little published data on its behavior in tension and modulus of elasticity. This paper presents the experimental results of prepla

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29

Parameswaran, V. R., M. Paradis, and Y. P. Handa. "Strength of frozen sand containing tetrahydrofuran hydrate." Canadian Geotechnical Journal 26, no. 3 (1989): 479–83. http://dx.doi.org/10.1139/t89-061.

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Cylindrical samples of frozen sand containing tetrahydrofuran hydrate were tested under uniaxial compression at 267 K and strain rates between 10−6 and 10−3 s−1. In the low strain rate region the compressive strength of the samples was higher than that of frozen sand containing ice. For example, at 267 K and a strain rate of 10−6 s−1 the peak stress for the frozen sand containing hydrate was about 16 MPa, whereas the corresponding value for the frozen sand containing ice was only 10.5 MPa. The strain rate dependence of stress for the frozen sand containing hydrate was much smaller than that of

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30

Aulia, Teuku Budi, Muttaqin Muttaqin, Mochammad Afifuddin, and Zahra Amalia. "Analysis of Post-Combustion High-Strength Concrete Compressive Strength Using Polypropylene Fibers." MEDIA KOMUNIKASI TEKNIK SIPIL 26, no. 1 (2020): 118–27. http://dx.doi.org/10.14710/mkts.v26i1.28262.

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High-strength concrete is vulnerable to high temperatures due to its high density. The use of polypropylene fibers could prevent structure explosion by forming canals due to melted fibers during fire, thus release its thermal stress. This study aims to determine the effect of polypropylene fibers on compressive strength of high-strength concrete after combustion at 400ºC for five hours. High-strength concrete was made by w/c-ratio 0.3 with cement amount 550 kg/m3 and added with silica fume 8% and superplasticizer 4% by cement weight. The variations of polypropylene fibers were 0%, 0.2% and 0.4

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Herbudiman, Bernardinus, Erma Desmaliana, and Andhi Muhammad Irawan. "Mechanical properties of concrete with substitution of coated styrofoam balls on coarse aggregate." MATEC Web of Conferences 276 (2019): 01028. http://dx.doi.org/10.1051/matecconf/201927601028.

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Substitution of Styrofoam balls on coarse aggregates reduced concrete self-weight. Coating on Styrofoam ball surface makes ball has shell on its surface and could increase the adhesive strength between ball surfaces and cement paste. The coating materials made by mixing of Portland cement and RCC-15 (Residual Catalytic Cracker-15) as pozzolanic material. 20 mm diameter Styrofoam balls are used. Coarse aggregates substituted by 5%, 15%, and 20% Styrofoam balls. The test specimens used three 10x20cm cylinders for each variant. Beam specimens of 15x15x60cm used for bending strength test by third

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Zhang, Hao, Yi Gao, and Chang Hong Huang. "Analysis of Mechanical Properties of Fiber Reinforced Polymer Mortar." Materials Science Forum 1001 (July 2020): 47–52. http://dx.doi.org/10.4028/www.scientific.net/msf.1001.47.

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It is studied that effects of different amounts of steel fiber and glass fiber on the compressive strength, flexural strength, and compression ratio and bond strength of styrene-acrylic emulsion modified mortar under different ages. The results show that the compressive strength, flexural strength and bond strength of mortar increase with the increase of steel fiber content, and the toughness improvement effect is obvious. With the increase of glass fiber content, mortar compressive strength, flexural strength and bond strength first increases and then decreases. Combined with SEM analysis and

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Liao, Ying Di, Chao Hua Jiang, and Xing Guo Feng. "An Empirical Correlation between Unconfined Compression Strength and Curing Time for Cement-Soil." Applied Mechanics and Materials 268-270 (December 2012): 642–45. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.642.

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Different cement types were used to stabilize coastal soft soil. The unconﬁned compression strength of each cement type treated soil was tested at different curing time. The results showed that the higher strength degree cement lead to the higher unconfined compression strength with same cement addition after curing 90 days. An empirical correlation between unconfined compressive strength and curing time was presented to forecast the unconfined compression strength of cement-soil. Additionally, the 14 day and the data of unconfined compressive strength at that time were suggested to use as the

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Zhang, Xin Yue, and Jin Long Yang. "The Compressive Strength of Ceramic Microbeads." Key Engineering Materials 336-338 (April 2007): 2411–13. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2411.

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The compressive strengths of three kinds of ceramic microbeads, ZrO2 toughened mullite, zirconium silicate and industrial zirconia, were studied in this paper. The densities of these ceramic microbeads were 2.9, 3.5 and 5.3g/cm3. The weighted average of compressive strength of these ceramic microbeads was 446.9, 500.8 and 917.3 N/mm2. It was concluded that the compressive strength of ceramic microbeads was proportional to the toughness and Young's modulus of the materials, and a larger diameter of the ceramic microbeads led to a higher compressive strength.

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Yoshihara, Hiroshi, Naoki Ataka, and Makoto Maruta. "Analysis of the open-hole compressive strength of spruce." Holzforschung 70, no. 5 (2016): 449–55. http://dx.doi.org/10.1515/hf-2015-0110.

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Abstract Open-hole compression tests on Sitka spruce (Picea sitchensis Carr.) were conducted, and the effect of the hole notch on the compressive strength has been investigated. A circular hole was cut at the centre of the longitudinal (R)-radial (R) plane. A compression load was applied to the specimen along the L or R direction, and the nominal stress at the onset of nonlinearity and the nominal compressive strength were obtained. In the test, the diameter of the hole was varied, and the effect of the diameter was analysed based on point stress criterion (PSC). It was revealed that the notch

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36

Potha Raju, M., K. Srinivasa Rao, and P. S. N. Raju. "Compressive strength of heated high-strength concrete." Magazine of Concrete Research 59, no. 2 (2007): 79–85. http://dx.doi.org/10.1680/macr.2007.59.2.79.

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Lu, Zhao Hui, Yan Gang Zhao, and Zhi Wu Yu. "Strain of High-Strength Concrete at Peak Compressive Strength." Advanced Materials Research 446-449 (January 2012): 161–65. http://dx.doi.org/10.4028/www.scientific.net/amr.446-449.161.

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The paper discusses the strain of high-strength concrete (HSC) at peak compressive strength for a wide range of compressive strength. A large volume of selected experimental data has been collected from existing literature and then analyzed. Particular emphasis has been given to studying the effects of concrete compressive strength and the types of coarse aggregate on the strain of HSC at peak compressive strength. The adequacy and applicability of the existing models for predicting the strain of HSC at peak compressive strength has been critically examined, and a new empirical model is propos

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Akçaözoğlu, Semiha. "The effect of elevated temperature on the lightweight concrete containing waste PET aggregate." International Journal of Business & Technology 6, no. 3 (2018): 1–14. http://dx.doi.org/10.33107/ijbte.2018.6.3.20.

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In this study, the effect of waste PET as lightweight aggregate (WPLA) replacement with conventional aggregate on the some physical and mechanical properties and residual compressive strength of concrete was investigated. For this purpose, five different mixtures were prepared (the reference mixture and four WPLA mixtures including 30%, 40%, 50% and 60% waste PET aggregate by volume). The fresh and dry unit weights, compressive strengths, flexural-tensile strengths, water absorption and porosity ratios of the mixtures were measured. In addition the specimens exposed to elevated temperatures at

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Pannachet, Tanyada, and Maetee Boonpichetvong. "Axial Compressive Strength of Metal Sheet Confined Concrete Cylinders Based on Various Concrete Strengths." Civil Engineering Journal 4, no. 11 (2018): 2529. http://dx.doi.org/10.28991/cej-03091178.

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This paper investigated effect of concrete strength on axial strength improvement of the metal sheet confined concrete cylinders under axial compression. Totally, 27 concrete specimens were tested based on three different concrete strengths of approximately 13, 32 and 39 MPa. Epoxy was used as a bonding material along interface between concrete and metal sheet. Based on three different concrete strengths, different level of confinement was established by taking one layer and three layers of metal sheet confinement. The experimental results revealed that axial compressive strength of concrete c

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Liu, Jie, Deng Jun Yi, Jian Cai, Shi Wei Luo, and Lei Xiao. "Under Uniaxial Compression of Rock Specimens of Two Cracking of Shear Failure Mode Analysis." Advanced Materials Research 415-417 (December 2011): 1553–57. http://dx.doi.org/10.4028/www.scientific.net/amr.415-417.1553.

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The dissertation introduced first simple uniaxial compression test of concrete, and in the specimen under uniaxial compression of the breakage mode reinforced and improved. For tensile destruction and shear failure damage model, bring forward the corresponding calculation model and some model set up compressive strength and tensile strength of the interrelations with each other, analysis of compressive strength and much higher than the tensile strength.In addition, from different model, drew diagrams with Matlab software，analysis of the compressive strength and tensile strength of the intrinsi

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Yeon, Kyu-Seok, Kwan Kyu Kim, Jaeheum Yeon, and Hee Jun Lee. "Compressive and Flexural Strengths of EVA-Modified Mortars for 3D Additive Construction." Materials 12, no. 16 (2019): 2600. http://dx.doi.org/10.3390/ma12162600.

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The compressive and flexural strengths of mortars modified with ethylene-vinyl acetate (EVA) were experimentally investigated for use in three-dimensional (3D) additive construction (3DAC). EVA powder, which is available in a premix type, was employed as an admixture. The test results for the cast specimens showed that, at a curing age of 28 days, the compressive strengths ranged from 32.92 MPa to 43.50 MPa, and the flexural strengths ranged from 12.73 MPa to 14.49 MPa. The compressive and flexural strengths of the printed specimens were relatively lower: 23% to 26% and 3% to 7%, respectively.

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Quayson, Jeriscot H., and Zakari Mustapha. "IMPACT OF COARSE AGGREGATE ON COMPRESSIVE STRENGTH OF CONCRETE." Built Environment Journal 16, no. 1 (2019): 52. http://dx.doi.org/10.24191/bej.v16i1.9674.

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Over one-third of the volume of concrete is occupied by coarse aggregate and any changes in coarse aggregate type can affect its strength and fracture properties. The paper examined the impact of coarse aggregates on compressive strength of concrete. Slump and compaction factor tests were conducted on the mixture of quartzite and crushed granite course aggregates, and quarry dust (fine aggregate). Nominal mix (1:2:3) was adopted and mix compositions were calculated by absolute weight method. Twelve (12) cubes (150x150mm) of each type of coarse aggregate were cast for 7, 14, 21, and 28 days to

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Jin, Yu Jie. "The Effects of Cement Volume for the Mechanics Performance of Fiber Modified Polymer Resin Concrete." Applied Mechanics and Materials 253-255 (December 2012): 478–81. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.478.

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Abstract. In order to analyze the polymer mortar performance with different cement volume polymer mortar specimens by the compression tests,the bending tests, scanning electron microscopy method, test results shows that: 115% of the cement dosage and cement dosage compared to 0%，flexural strength of polymer mortar increased 95%, compressive strength increased 74%, the ratio of flexural and compressive strength increased accordingly. However, when the dosage is higher than 115%, resulting in large specific surface area of cement, bending strength and compressive strength has declined.

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Hou, Chongchi, Wenzhong Zheng, and Wei Chang. "BEHAVIOUR OF HIGH-STRENGTH CONCRETE CIRCULAR COLUMNS CONFINED BY HIGH-STRENGTH SPIRALS UNDER CONCENTRIC COMPRESSION." JOURNAL OF CIVIL ENGINEERING AND MANAGEMENT 26, no. 6 (2020): 564–78. http://dx.doi.org/10.3846/jcem.2020.12913.

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This paper tested the behaviour of 32 high-strength concrete columns confined by high-strength spirals under concentric compression. The test parameters included unconfined concrete compressive strength, spiral yield strength, volumetric ratio, and spiral spacing. The results showed that bulging and shear sliding were the two characteristic types of failure patterns of the thirty-two confined columns, depending on spiral spacing and concrete strength. Moreover, the spiral in most specimens did not yield at the confined concrete compressive strength. An analytical confinement model for high-str

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Zhang, Ju, Chang Wang Yan, and Jin Qing Jia. "Compressive Strength and Splitting Tensile Strength of Steel Fiber Reinforced Ultra High Strength Concrete (SFRC)." Applied Mechanics and Materials 34-35 (October 2010): 1441–44. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.1441.

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This paper investigates the compressive strength and splitting tensile strength of ultra high strength concrete containing steel fiber. The steel fibers were added at the volume fractions of 0%, 0.5%, 0.75%, 1.0% and 1.5%. The compressive strength of the steel fiber reinforced ultra high strength concrete (SFRC) reached a maximum at 0.75% volume fraction, being a 15.5% improvement over the UHSC. The splitting tensile strength of the SFRC improved with increasing the volume fraction, achieving 91.9% improvements at 1.5% volume fraction. Strength models were established to predict the compressiv

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Uchaipichat, Anuchit. "Influence of Curing Pressure on Unconfined Compressive Strength of Cemented Clay." Materials Science Forum 928 (August 2018): 263–68. http://dx.doi.org/10.4028/www.scientific.net/msf.928.263.

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The soil-cement columns are generally installed and cured in the soft clay layers under confining pressure. The strength of the soil-cement columns may be influenced by confining pressure during curing period. In this study, the main objective was to study the influence of curing pressure on unconfined compressive strength of cemented clay. A series of unconfined compression tests was performed on a cement admixed clay sample cured under pressure values of 0 kPa (atmospheric pressure), 25kPa, 50kPa and 100 kPa using a typical unconfined compression equipment. The test samples with values of ce

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Huang, Zhong Hua, Shao Jun Liu, Ying Guang Xu, and Wang Hu. "Seafloor Polymetallic Sulfides Mechanical Property Test." Advanced Materials Research 1015 (August 2014): 316–19. http://dx.doi.org/10.4028/www.scientific.net/amr.1015.316.

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Seafloor polymetallic sulfide specimens were developed according to engineering rock test method standard (GB/T 50266-2013). Seafloor polymetallic sulfide wet density and dry density were tested. Uniaxial compressive strength and triaxial compression strength of seafloor polymetallic sulfide were tested using rock mechanics test system MTS 815. Elasticity modulus and Poisson's ratio of seafloor polymetallic sulfide were calculated based on specimens stress-strain curves. Cohesion and internal friction angle were calculated based on specimens triaxial test Mohr stress circle. Test results show

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Jin, Yu Jie, Li Guang Xiao, and Feng Luo. "The Effects of Steel Content for the Mechanics Performance of Fiber Modified Polymer Resin Concrete." Advanced Materials Research 690-693 (May 2013): 760–62. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.760.

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In order to analysis the polymer mortar performance, with different steel content polymer mortar specimens by compression tests, bending tests, scanning electron microscopy method, test results indicate that: 3% of the cement dosage and cement dosage compared to 0%，flexural strength of polymer mortar increased 26%, compressive strength increased 6%, fold compression ratio increased accordingly. However, when the dosage is higher than 3%, resulting in large specific surface area of cement, bending strength and compressive strength has declined.

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Fartini, M. S., M. S. Abdul Majid, Mohd Afendi, R. Daud, and Azizul Mohamad. "Effect of Nano-Clay and their Dispersion Techniques on Compressive Properties of Unsaturated Polyester Resin." Applied Mechanics and Materials 554 (June 2014): 27–31. http://dx.doi.org/10.4028/www.scientific.net/amm.554.27.

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This paper aims to understand the relationship between processing parameters and compressive properties of nanoclay filled polyester resin (dispersion method and wt% of nanoclay particles). Unsaturated polyester resin with 0-5 wt% nanoclay content was prepared by hand mixing and through shears mixing of water bath shaker. Static uniaxial compression tests were conducted to investigate how the unsaturated polyester resins with nanoclay contents and processing will effect on the compressive stress-strain behaviour and compression properties. The experimental results show that the compressive str

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Wijeweera, Harsha, and Ramesh C. Joshi. "Compressive strength behavior of fine-grained frozen soils." Canadian Geotechnical Journal 27, no. 4 (1990): 472–83. http://dx.doi.org/10.1139/t90-062.

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Constant strain-rate (0.01/s) uniaxial compression-strength tests were conducted on more than 200 saturated samples of six fine-grained frozen soils at temperatures between −5 and −17 °C. Saturated soil samples containing total water contents between 15% and 105% were prepared using a consolidation apparatus specially designed for this purpose. The effect of dry unit weight, total water content, temperature, and soil type on the behavior of peak compressive strength was studied. Test results indicate the peak compressive strength of fine-grained soils is sensitive to changes in the dry unit we

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