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Journal articles on the topic 'Cement type'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Kim, Ah-Jin, and Ji-Myung Bae. "Type and Characteristics of Polymer-based Luting Materials." Journal of The Korean Dental Association 53, no. 3 (2015): 178–86. http://dx.doi.org/10.22974/jkda.2015.53.3.001.

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Dental polymer-based luting materials are classified into esthetic resin cement, adhesive resin cement and self-adhesive resin cement. Due to the different component of each type of resin cement, the preconditioning method of tooth surface and the steps are different from each type of resin cement. The pre-treatment of adherend (ceramic, resin and metal) surface also varies with the type of resin cement and the manufacturer. In this study, the characteristics of each type of resin cement, mechanical properties, indication and advantages were investigated. Through these, clinical tips on using

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2

Tumidajski, P. J., L. Fiore, T. Khodabocus, M. Lachemi, and R. Pari. "Comparison of the cement efficiency of two type GU cements." Canadian Journal of Civil Engineering 33, no. 3 (2006): 343–46. http://dx.doi.org/10.1139/l05-127.

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The cement efficiency or reactivity of two type GU cements sold in the southern Ontario market was studied using compressive strength measurements of concrete coupled with Abram's Law. At 28 days, it was found that there was a marked performance difference between the two cements. For example, at 28 days, the cement efficiencies were 0.0889 and 0.0953 MPa·kg 1. The difference in cement efficiency was related somewhat to cement fineness. It was observed that the 28 day mortar strengths represented a good predictor of the relative efficiencies of the cement.Key words: cement, concrete, compressi

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3

Ťažký, Martin, and Rudolf Hela. "Influence of Cement Type on Stability of Concrete Mixture." Solid State Phenomena 321 (July 26, 2021): 15–21. http://dx.doi.org/10.4028/www.scientific.net/ssp.321.15.

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The continuous tightening of emission limits for the production of harmful substances into the air and the rising price of emission allowances gradually force construction material producers to limit the use of binders with a high content of Portland clinker. In the production of concrete, this is achieved by using admixtures, which make it possible to reduce Portland cement doses. However, the single European market uses a method that maximises the use of blened cements, making it easier for cement plants to meet emission limits while not reducing cement production. The performed experiment f

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Tassos, Christos, Kosmas Sideris, Alexandros Chatzopoulos, Nikolaos Pistofidis, and Emmanouil Chaniotakis. "Influence of cement type on carbonation of concrete mixtures." MATEC Web of Conferences 163 (2018): 05005. http://dx.doi.org/10.1051/matecconf/201816305005.

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This research aims to investigate the influence of cement type to carbonation. For this purpose mixtures of four different cement mortars and eight different concretes that have been prepared with four different cements were left exposed for one year in open air in northern Greece. Results indicate that the type of cement influences the carbonation rate. Concrete mixtures produced according to the definitions of EN 206 standard perform lower service life against carbonation induced corrosion if the choice of the cement type is not carefully examined.

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Zhao, Jun, Gao Chuang Cai, and Dan Ying Gao. "Study on Bonding Characteristic of Mixed-Type Chloride Ion in Sulphoaluminate Cement." Key Engineering Materials 467-469 (February 2011): 698–702. http://dx.doi.org/10.4028/www.scientific.net/kem.467-469.698.

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The binding properties of chloride ion of sulphoaluminate cement and portland cement were studied in different age,different water-cement ratio and different chloride ion content. The results show that binding rate tends to increase as the age and water-cement ratio increase for above two type cements. But the trend is opposite with the increase of total amount of incorporation chloride ion(TAIC), and the early strength of sulphoaluminate cement decreases slightly.

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Wei, Guo Xia, Han Qiao Liu, and Shu Guang Zhang. "Using of Different Type Cement in Solidification/Stabilization of MSWI Fly Ash." Advanced Materials Research 291-294 (July 2011): 1870–74. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.1870.

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Solidification tests of MSWI fly ash (FA) with three types of cement including ordinary Portland cements (OPC), calcium sulfoaluminate cement(CSA) and calcium aluminate cement (CAC) were carried out to discuss the effect of cement type on of the FA-cement solid matrix by means of setting time, compressive strength and heavy metals leachability. Results show that the setting time of the FA-cement mixtures using CSA and CAC is shorter than that of OPC. According to compressive strengths demand and the standard of landfill site of municipal solid waste, the dosage of OPC should be limited about 3

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Ghafoori, Nader, Matthew O. Maler, Meysam Najimi, and Ariful Hasnat. "Properties of high early-strength Type V cement concrete for rapid repair." MATEC Web of Conferences 289 (2019): 02003. http://dx.doi.org/10.1051/matecconf/201928902003.

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This study examines the suitability of ASTM Type V cement concrete for rapid repair applications. To this end, experimental results on transport and durability properties of high early-strength concretes using ASTM Type V cement were compared with those of a more traditional cement used for rapid repair, i.e. Type III cement. A cement content of 445 kg/m3 (750 lb/yd3) was maintained for all studied concretes. The experimental program included compressive strength, absorption, rapid chloride migration, corrosion resistance, and mass loss due to freezing and thawing regimes. The results of this

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Siek, D., J. Czechowska, W. Mróz, et al. "Bioactivity of cement type bone substitutes." Bulletin of the Polish Academy of Sciences: Technical Sciences 61, no. 2 (2013): 433–39. http://dx.doi.org/10.2478/bpasts-2013-0042.

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Abstract In vitro chemical stability and bioactivity of three different cement type bone substitutes were determined by incubating cement samples in the simulated body fluid (SBF) for 7 and 28 days. Morphology of sample surfaces has been studied using scanning electron microscopy (SEM) combined with an energy dispersive X-ray spectroscopy (EDS) and by atomic force microscopy (AFM). The diffuse reflectance Fourier-transform infrared spectroscopy (DRIFTS) was applied as a supplementary method. The development of bone-like apatite layers on the surface depended on their initial phase composition.

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Ghafoori, Nader, Matthew O. Maler, Meysam Najimi, and Ariful Hasnat. "Abrasion resistance of high early-strength concrete for rapid repair." MATEC Web of Conferences 289 (2019): 02002. http://dx.doi.org/10.1051/matecconf/201928902002.

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This paper examines the abrasion resistance of high early-strength concrete developed for rapid repair of highways and bridge decks. The cement types chosen for this study included ASTM Type III, ASTM Type V, and Calcium Sulfoaluminate (CSA) cements. A cement content of 386 kg/m3 (650 lb/yd3) was maintained for all studied concretes. Test samples were tested after 24 hours and 28 days of curing in order to evaluate compressive strength and depth of wear. Test results revealed that the opening time to attain minimum required compressive strength for CSA cement concrete was one hour, whereas the

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Goñi, S., M. T. Gaztañaga, and A. Guerrero. "Role of Cement Type on Carbonation Attack." Journal of Materials Research 17, no. 7 (2002): 1834–42. http://dx.doi.org/10.1557/jmr.2002.0271.

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The carbonation of two hydrated ordinary portland cements of alkali content 1.03% or 0.43% Na2O equivalent and hydrated calcium aluminate cement (0.1% Na2O equivalent) was studied in a semi-dynamic atmosphere of 100% CO2, and 65% relative humidity at 20 ± 1 °C, for a period of 100 days. The changes of the microstructure before and during the carbonation were characterized by x-ray diffraction, mercury intrusion porosimetry, and scanning electron microscopy. The kinetics of the process was evaluated from the total CaCO3 content by means of thermogravimetric analysis. The changes of the mechanic

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Khalyushev, A. K., and E. A. Kolesnichenko. "“Caking” Process in Green Cement Composites under the Impact of Environment." Modern Trends in Construction, Urban and Territorial Planning 3, no. 4 (2025): 74–81. https://doi.org/10.23947/2949-1835-2024-3-4-74-81.

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Introduction. The problems of resource and energy saving during production of cements and concretes on their basis are of great importance in the world. An important trend in solving these problems is the development of green cements, which contain various mineral additives of natural and anthropogenic origin. The advantages of the green cements compared to the clinker-based cements are revealed from both the environmental point of view — reduction of carbon dioxide emissions into the atmosphere, use of the industrial by-products, and the technical point of view — improvement of the technologi

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Szczesio-Wlodarczyk, Agata, Karolina Rams, Karolina Kopacz, Jerzy Sokolowski, and Kinga Bociong. "The Influence of Aging in Solvents on Dental Cements Hardness and Diametral Tensile Strength." Materials 12, no. 15 (2019): 2464. http://dx.doi.org/10.3390/ma12152464.

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Prosthetic materials must exhibit adequate resistance to the oral environment. The aim of this paper was to study the resistance of selected cements used for cementing restorations (Breeze—composite, Adhesor Carbofine—zinc-polycarboxylate and IHDENT–Giz type II—glass-ionomer) against ethanol, soda and green tea solutions. The highest values of hardness and DTS (diametral tensile strength) were obtained by composite cement (HV = 15–31, DTS = 34–45 MPa). Ethanol solution had the greatest impact on the hardness value of composite cement, and soda solution on zinc-polycarboxylate cement. No signif

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Santos-Neto, Oswaldo, Letícia Gonçalves, Etevaldo Maia-Filho, et al. "Retention of cemented zirconia copings on TiBase abutments." Acta Odontológica Latinoamericana 34, no. 3 (2021): 214–20. http://dx.doi.org/10.54589/aol.34/3/214.

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This study evaluated the influence of resin cements and glass ionomers on tensile strength and types of failure of zirconia copings cemented on titanium base abutments. Forty-two samples were prepared, which were formed by a Cone Morse implant, a titanium abutment with the fixing screw, and a zirconia structure made using a CAD/CAM system. The samples (n = 42) were randomly distributed according to the cementing agent: resin-modified glass ionomer cement (RelyX Luting 2), self-adhesive resin cement (RelyX U200), and self-curing resin cement (Multilink N). After cementation of the copings, half

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Shafiei, Fereshteh, Mahtab Memarpour, and Zahra Jowkar. "Effect of Silver Antibacterial Agents on Bond Strength of Fiber Posts to Root Dentin." Brazilian Dental Journal 31, no. 4 (2020): 409–16. http://dx.doi.org/10.1590/0103-6440202003300.

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Abstract This study was conducted to evaluate whether antibacterial pretreatment irrigation with silver nanoparticles (SNPs) and silver diamine fluoride (SDF) has any effect on bond strength of fiber posts cemented with three types of resin cements in root canal space. Fifty-four endodontically treated maxillary central incisor roots were prepared for fiber post (FRC Postec Plus NO.3, Ivoclar Vivadent) cementation and divided into nine groups in terms of three cement types and two pretreatments with silver antibacterial agents. The cements were as follows: an etch-and-rinse cement (ER, Excite

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Ghafoori, Nader, Matthew O. Maler, Meysam Najimi, Ariful Hasnat, and Aderemi Gbadamosi. "Role of Cement Type on Properties of High Early-Strength Concrete." Journal of Composites Science 9, no. 1 (2024): 3. https://doi.org/10.3390/jcs9010003.

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Properties of high early-strength concretes (HESCs) containing Type V, Type III, and rapid hardening calcium sulfoaluminate (CSA) cements were investigated at curing ages of opening time, 24 h, and 28 days. Investigated properties included the fresh (workability, setting time, air content, unit weight, and released heat of hydration), mechanical (compressive and flexural strengths), transport (absorption, volume of permeable voids, water penetration, rapid chloride permeability, and accelerated corrosion resistance), dimensional stability (drying shrinkage), and durability (de-icing salt and a

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16

Sanduo, T. "The Special Features of Cement Standards in China." Cement, Concrete, and Aggregates 15, no. 2 (1993): 165–69. http://dx.doi.org/10.1520/cca10604j.

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Abstract A large amount of blended cement, special cement, and shaft kiln manufactured cement is produced in China. These cements form the basis for China's cement standards. These standards have many special features and constitute a unique cement standard system. The standard cements are divided into three groups: common cement, special performance cement, and special purpose cement. As common cements, which include ordinary portland cement, portland blast-furnace cement, portland pozzolana cement, and portland composite slag cement, etc., the required and allowable blended materials incorpo

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17

Grillo, H. F., Neide Aparecida Mariano, Alfeu Saraiva Ramos, Fabio Ferraço, K. V. F. Grillo, and Sylma C. Maestrelli. "Effect of Superplasticizer Additives for Class Type Cpii E32 Cements." Materials Science Forum 820 (June 2015): 483–87. http://dx.doi.org/10.4028/www.scientific.net/msf.820.483.

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Concrete mixing technology has spread with the development of water-reducing additives, enabling production of high quality products. Despite the discoveries and important technological advances, occurrences concerning the incompatibility between sealers and additives have been reported. The main incompatibilities occur between additive and cement of different brands, or different batches. This study investigated the influence of a superplasticizer on the properties of two cements of the same class (type CP II E 32), but different manufacturers. Two cements (without the presence of the additiv

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18

Kuziak, Justyna, Kamil Zalegowski, Wioletta Jackiewicz-Rek, and Emilia Stanisławek. "Influence of the Type of Cement on the Action of the Admixture Containing Aluminum Powder." Materials 14, no. 11 (2021): 2927. http://dx.doi.org/10.3390/ma14112927.

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The study of the effect of cement type on the action of an admixture increasing the volume of concrete (containing aluminum powder), used in amounts of 0.5–1.5% of cement mass, was presented. The tests were carried out on cement mortars with Portland (CEM I) and ground granulated blast-furnace slag cement (CEM III). The following tests were carried out for the tested mortars: the air content in fresh mortars, compressive strength, flexural strength, increase in mortar volume, bulk density, pore structure evaluation (by the computer image analysis method) and changes in the concentration of OH−

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19

Garg, Pooja, Malesh Pujari, D. R. Prithviraj, and Sumit Khare. "Retentiveness of Various Luting Agents Used With Implant-Supported Prosthesis: An In Vitro Study." Journal of Oral Implantology 40, no. 6 (2014): 649–54. http://dx.doi.org/10.1563/aaid-joi-d-12-00008.

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Desired retrievability of cemented implant-supported fixed prosthesis makes the retentive strength of cementing agents an important consideration. The aim of the study was to evaluate the retentiveness of purposely designed implant cement and compare its retentiveness with dental cements that are commonly used with implant systems. Ten implant analogs were embedded in auto-polymerizing acrylic resin blocks and titanium abutments were attached to them. Fifty standardized copings were waxed directly on the abutment and casted. The cements used were: (1) resin-bonded zinc oxide eugenol cement, (2

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Kropyvnytska, Тetiana, Iryna Нeviuk, Roksolana Stekhna, Oksana Rykhlitska та Lidiia Deschenko. "EFFECT OF LIMESTONE POWDER ON THE PROPERTIES OF BLENDED РORTLAND CEMENTS". Theory and Building Practice 2021, № 1 (2021): 35–41. http://dx.doi.org/10.23939/jtbp2021.01.035.

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The article shows the relation between sustainability and cement manufacture that can be obtained by the replacement of clinker with limestone additive. This decreases the use of energy resources and reduces CO2 emissions in cement production. The issue of partial Portland cement clinker substitution by finely ground limestone in the production of market-oriented types of cement type CEM II is solved on the cement plant PJSC "Ivano-Frankivsk Cement". The indexes of physical-mechanical tests of certified Portland limestone cement with high early strength CEM II/A-LL 42.5 R produced by PJSC "Iva

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Makarenko, S. V. "Cements with low water demand as an alternative type of binding mixture used in ready-mixed concrete." Izvestiya vuzov. Investitsii. Stroitelstvo. Nedvizhimost 13, no. 1 (2023): 58–63. http://dx.doi.org/10.21285/2227-2917-2023-1-58-63.

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The paper compares Portland cement and cement with low water demand. The aim of the study was to estimate the possibility of reducing the cost of a binder and the cost of the resulting readymixed concrete, along with achieving its improved physical and mechanical properties over a short time frame. This is undoubtedly a relevant indicator, especially in winter construction, since the kinetics of concrete strength gain is one of the key factors limiting the pace of construction. The study assesses the feasibility of introducing technogenic waste and local minerals into concrete composition, as

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Frías, Moisés, Manuel Monasterio, and Jaime Moreno-Juez. "Physical and Mechanical Behavior of New Ternary and Hybrid Eco-Cements Made from Construction and Demolition Waste." Materials 16, no. 8 (2023): 3093. http://dx.doi.org/10.3390/ma16083093.

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Construction and demolition waste (CDW) currently constitutes a waste stream with growing potential use as a secondary raw material in the manufacture of eco-cements that offer smaller carbon footprints and less clinker content than conventional cements. This study analyzes the physical and mechanical properties of two different cement types, ordinary Portland cement (OPC) and calcium sulfoaluminate (CSA) cement, and the synergy between them. These cements are manufactured with different types of CDW (fine fractions of concrete, glass and gypsum) and are intended for new technological applicat

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Macijauskas, Mindaugas, and Albinas Gailius. "INFLUENCE OF CEMENT TYPE AND ADMIXTURES ON RHEOLOGICAL PROPERTIES OF CEMENT PASTE / CHEMINIŲ ĮMAIŠŲ POVEIKIS REOLOGINĖMS CEMENTO TEŠLOS SAVYBĖMS." Engineering Structures and Technologies 5, no. 4 (2014): 175–81. http://dx.doi.org/10.3846/2029882x.2014.912431.

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The article aims to research the influence of the chemical admixtures on the rheological properties of Portland cement paste and determine their impact on the effectiveness of hydration induction period. Materials used in the study: Portland cement CEM I 42.5 (N and R early strength), limestone Portland cement CEM II/A-LL 42.5 N, plasticizer Centrament N3, the latest generation superplasticizer MC-PowerFlow 3140 and water. Investigations focused on effects of Plasticizer and superplasticizer on water and cement (W/C) ratio and Portland cement paste flow characteristics. Portland cement pastes

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Omelchuk, Vladyslav, Guang Ye, Rayisa Runova, and Igor I. Rudenko. "Shrinkage Behavior of Alkali-Activated Slag Cement Pastes." Key Engineering Materials 761 (January 2018): 45–48. http://dx.doi.org/10.4028/www.scientific.net/kem.761.45.

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Nowadays, alkali-activated cements (AACs) are the most promising alternatives to ordinary portland cement (OPC). Such cements characterized by better strength and corrosion resistance that determine improved durability of materials based on them. However, the shrinkage of AAC systems is noticeably higher compared with OPC. The purpose of this work was to study the shrinkage behavior of alkali-activated slag cement (AASC) pastes. To improve early age performance of AASCs – OPC and Ca(OH)2, as mineral additives, were added to the designed cement mixtures. The properties, like, flexural and compr

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Verret, D. J., Yadranko Ducic, Lance Oxford, and Jesse Smith. "Hydroxyapatite Cement in Craniofacial Reconstruction." Otolaryngology–Head and Neck Surgery 133, no. 6 (2005): 897–99. http://dx.doi.org/10.1016/j.otohns.2005.09.001.

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OBJECTIVES: To evaluate the long-term efficacy of hydroxyapatite cement in craniofacial reconstruction, specifically examining the role (if any) of radiation, implant location, and cement type. STUDY DESIGN: A retrospective chart review was conducted of all patients presenting to the senior surgeon (Y.D.) for craniofacial reconstruction from September 1997 to April 2004. METHODS: Data were collected including type of cement used, size of defect, complications, need for removal of cement, reason for defect, and pathologic results of examination of removed cements. RESULTS: One hundred two patie

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Hata, Kentaro, Yuya Komagata, Yuki Nagamatsu, Chihiro Masaki, Ryuji Hosokawa, and Hiroshi Ikeda. "Bond Strength of Sandblasted PEEK with Dental Methyl Methacrylate-Based Cement or Composite-Based Resin Cement." Polymers 15, no. 8 (2023): 1830. http://dx.doi.org/10.3390/polym15081830.

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Poly-ether-ether-ketone (PEEK) is commonly employed in dental prostheses owing to its excellent mechanical properties; however, it is limited by its low bond strength with dental resin cement. This study aimed to clarify the type of resin cement most suitable for bonding to PEEK: methyl methacrylate (MMA)-based resin cement or composite-based resin cement. For this purpose, two MMA-based resin cements (Super-Bond EX and MULTIBOND II) and five composite-based resin cements (Block HC Cem, RelyX Universal Resin Cement, G-CEM LinkForce, Panavia V5, and Multilink Automix) were used in combination w

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Lukpanov, R. E., D. S. Dyusembinov, A. D. Altynbekova, S. B. Yenkebayev, and Zh B. Zhantlesova. "RESEARCH PHYSICAL AND MECHANICAL PROPERTIES OF SAND AND CEMENT FOR FOAM CONCRETE PRODUCTION." Bulletin of Kazakh Leading Academy of Architecture and Construction 87, no. 1 (2023): 217–28. http://dx.doi.org/10.51488/1680-080x/2023.1-21.

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The article presents the results of experimental studies of the properties of sand and cement. A comparative study of cements from different manufacturers for physical and mechanical characteristics, as well as analyzed the mining sites of quarry sand in Akmola region and their characteristics on the physical and mechanical properties. Evaluation of the physical and mechanical characteristics of Portland cement was made for the three types. The main evaluation parameters were: setting time, compressive and flexural strength. Performed studies have shown that the sand deposits «Eltok» (Type 1)

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Lokhande, Prakash. "Comparative Evaluation of microhardness of type 2 Glass Ionomer Cement (restorative) and Zirconia based GIC - An In-Vitro Study." CODS Journal of Dentistry 7, no. 1 (2015): 4–7. http://dx.doi.org/10.5005/cods-7-1-4.

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Abstract Aims To evaluate the microhardness of type II glass-ionomer cement (GIC) (restorative) and zirconia based glass –ionomer cement. Materials and Methods Twenty cylindrical samples measuring 5mm (diameter) and 5mm in length were prepared with type II glass-ionomer cement that is restorative (n=10) and zirconia based glass-ionomer-cement (n=10). Finishing and polishing was made with coarse grit to fine grit. Then samples were subjected to Vickers hardness tester by using digital micro hardness tester (Zwick/Roell) under a load of 300 grams for 15 seconds. The data obtained was subjected t

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N., B. Singh, Chaturvedi Shivani, and Rai Sarita. "Chemistry of portland cement." Journal of Indian Chemical Society Vol. 80, Apr 2003 (2003): 319–25. https://doi.org/10.5281/zenodo.5839590.

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Department of Chemistry, D. D. U. Gorakhpur University, Gorakhpur-273 009, India Department of Chemistry, Indian Institute of Technology, Delhi-110 016, India <em>E-mail:</em> dr_n_b_singh@rediffmail.com <em>Manuscript received 19 September 2002</em> A brief account of the raw materials, fluxes and mineralizers used in the manufacture of portland cement is given. Different .cement modules, in terms of oxide composition normally required for its manufacture, are also given. Major chemical reactions involved in the manufacture of portland cement clinker, properties and hydration behavior of the

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Aldryhim, Hanan, Omar El-Mowafy, Peter McDermott, and Anuradha Prakki. "Hardness of Resin Cements Polymerized through Glass-Ceramic Veneers." Dentistry Journal 9, no. 8 (2021): 92. http://dx.doi.org/10.3390/dj9080092.

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(1) Background: The aim of this study is to evaluate the hardness of resin cements polymerized through ceramic disks under different process factors (ceramic type and thickness, light-polymerization units and polymerization time); (2) Method: Three types of ceramic blocks were used (IPS e.max CAD; Celtra Duo; VITABLOCS). Ceramic disks measuring 0.5 mm, 1.0 mm and 1.5 mm were cut from commercial blocks. Two resin cements (Rely X Veneer and Variolink Esthetic) were polymerized through the ceramic specimens using distinct light-polymerization units (Deep-cure; Blue-phase) and time intervals (10 a

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Blessing, Ludo Vannes. "Fast set GGBS Binder." ce/papers 6, no. 6 (2023): 189–93. http://dx.doi.org/10.1002/cepa.2934.

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AbstractTo reduce CO2 emission producing Ordinary Portland cement (every ton of Portland cement accounts for roughly 850 kg CO2) the use of supplementary cementing materials (SCM's) are becoming todays standard in the cement and construction industry.Although some SCMs are used on their own, most of them are used in combination with Portland cement clinker.Aim was to accelerate the setting time of a pure GGBS binder and improve its early strength development. From different publications we learned that fast setting cements contain C11A7. CAF2 similar to the phases calculated from our Type II G

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Khanal, Manoj, Ying Zheng, and Zeng Tao Chen. "Finite Element Analysis of a New Custom Made Orthotropic Post Material for Dental Applications." Advanced Materials Research 32 (February 2008): 193–96. http://dx.doi.org/10.4028/www.scientific.net/amr.32.193.

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Effects of cement properties on stress distributions at the dentin-cement-post interfaces have been studied using 3D explicit finite element simulations. The mastication and horizontal loadings are simulated with titanium and glass fiber posts. Different type of cements (moduli 2,8,18 and 22 GPa) is considered to study the interface stresses. The interface stresses are evaluated at dentin-cement-post interfaces and along the surface of the post and cement. The element deletion technique from finite element analysis has been used to predict the cement failure. The simulation results suggest tha

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Rakhimbaev, Shark M., N. M. Tolypina, E. N. Khakhaleva, and D. A. Tolypin. "Improving the Cement Systems Corrosion Resistance Based on Clogging Theory." Materials Science Forum 974 (December 2019): 26–30. http://dx.doi.org/10.4028/www.scientific.net/msf.974.26.

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One of the most important elements of the primary protection of concrete structures against chemical aggression is the correct choice of the type of cement. Specialists have done a lot of work to clarify the comparative stability of various types of cement systems in aggressive media containing various aggressive components [1-3]. Resistant cements for certain types of corrosion are known, but there is no complete concept of their choice. This causes difficulties in choosing the type of cement for specific types of corrosion in organic media, for complex types of corrosion, when the applicatio

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Davidová, Vendula, and Pavel Reiterman. "AUTOGENOUS SHRINKAGE OF COMPOSITES BASED ON PORTLAND CEMENT." Acta Polytechnica CTU Proceedings 22 (July 25, 2019): 22–25. http://dx.doi.org/10.14311/app.2019.22.0022.

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Autogenous shrinkage of cement based composites is important property influencing number of their engineering application. Its ultimate value is predominantly determined by mineralogical composition of cement and its particle size distribution. Present paper introduces experimental study focused on the evaluation of various cements of grade CEM I 42.5 produced in Czech Republic in terms of shrinkage under autogenous conditions. Selected cement type is currently the most frequently used cement. Conducted study confirmed essential differences in ultimate values of shrinkage, which is partially d

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Skripkiūnas, Gintautas, Asta Kičaitė, Harald Justnes, and Ina Pundienė. "Effect of Calcium Nitrate on the Properties of Portland–Limestone Cement-Based Concrete Cured at Low Temperature." Materials 14, no. 7 (2021): 1611. http://dx.doi.org/10.3390/ma14071611.

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The effect of calcium nitrate (CN) dosages from 0 to 3% (of cement mass) on the properties of fresh cement paste rheology and hardening processes and on the strength of hardened concrete with two types of limestone-blended composite cements (CEM II A-LL 42.5 R and 42.5 N) at different initial (two-day) curing temperatures (−10 °C to +20 °C) is presented. The rheology results showed that a CN dosage up to 1.5% works as a plasticizing admixture, while higher amounts demonstrate the effect of increasing viscosity. At higher CN content, the viscosity growth in normal early strength (N type) cement

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Paredes, Danny Jhefersson Vásquez. "Cement type Hs and type V: determination of resistance against moisture and sulfate attack." Material Science & Engineering International Journal 8, no. 2 (2024): 67–70. http://dx.doi.org/10.15406/mseij.2024.08.00238.

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The moisture content and the level of saltpeter to which a land is exposed is a topic of great importance in the field of Civil Engineering, that is why in this work we aim to make a comparison between the properties offered by a cement type V and an HS type, to then determine the most resistant in places with high presence of moisture and sulfates. The research is of the descriptive and explanatory type because the results obtained after having carried out an experimental process with the materials to be used (cement type HS and type V) were manifested. The result of having carried out a good

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Ponco, Vinansius, Jonie Tanijaya, and Olan Jujun Sanggaria. "Comparison Of Concrete Using Portland Composite Cement And Ordinary Portland Cement." Paulus Civil Engineering Journal 3, no. 3 (2021): 406–11. http://dx.doi.org/10.52722/pcej.v3i3.292.

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Cement is the basic material for making concrete that can be used as a hydraulic binder. There are various types of cement including OPC and PCC cement. The problem now is that there is no technical data that can be used as a reference in determining the proportion of the mixture. Examples of cement are obtained from the same factory. namely PT. Semen Tonasa, South Sulawesi with an amount of 78.96 kg of cement for each type of cement. From the results of laboratory tests, it was found that the data on the comparison of concrete using OPC and PCC cements had different data on the of OPC cement

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Hooton, RD, JE Gillott, and T. Quinn. "Strength and Sulfate Resistance of Concrete Made With High Alumina Cement, Type 10 Portland Cement, Type 10 Portland Cement Plus Fly Ash and Type 50 Portland Cement." Cement, Concrete and Aggregates 25, no. 1 (2003): 11842. http://dx.doi.org/10.1520/cca10517j.

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TERADA, Chiho, Kazuhiro AIZAWA, Takayuki HIGUCHI, and Etsuo SAKAI. "PROPERTIES AND HYDRATION OF MORTARS WITH CALCIUM SULFOALUMINATE TYPE ACCELERATOR AND PC-TYPE SUPERPLASTICIZER." Cement Science and Concrete Technology 78, no. 1 (2025): 161–68. https://doi.org/10.14250/cement.78.161.

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Abu Haimed, Tariq S., Saeed J. Alzahrani, Esraa A. Attar, and Lulwa E. AL-Turki. "Effect of Repressing Lithium Disilicate Glass Ceramics on The Shear Bond Strength of Resin Cements." Materials 16, no. 18 (2023): 6148. http://dx.doi.org/10.3390/ma16186148.

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The aim of this study was to investigate the effect of repeated pressing of lithium disilicate ceramic on the shear bond strength (SBS) of three types of resin cement. Methodology: A lithium disilicate ceramic (IPS e.max® Press) was first heat-pressed to form rectangular disk specimens. Then, leftovers were used for the second and third presses. A total of 90 specimens were prepared and separated, according to the number of pressing cycles, into three groups: 1st, 2nd, and 3rd presses (n = 30). Each group was further subdivided into three groups (n = 10) according to the type of resin cement u

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Utěšená, Monika, and Radka Pernicova. "Color Intensity of Architectural Concrete Depending on the Type of Cement." Materials Science Forum 986 (April 2020): 50–54. http://dx.doi.org/10.4028/www.scientific.net/msf.986.50.

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In this paper, the influence of the cement type on the final coloring of the concrete with colored powdered inorganic pigments used currently with increasing tendency in construction and modern architecture is presented. In the experimental testing, the difference in intensity/saturation of the color of the concrete containing white cement (CEM I 52.5 R - SR 5 white), which is preferred when using color pigments, and gray (conventional) Portland cement (CEM I 52.5 R) from the same manufacturer has been measured and compared. Three colored inorganic powder pigments (red, green and yellow pigmen

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Brachaczek, Wacław. "Modifying Stucco Mortars with Additions of Sulphoaluminate Cement and Aluminate Cement." Solid State Phenomena 276 (June 2018): 198–203. http://dx.doi.org/10.4028/www.scientific.net/ssp.276.198.

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Stucco products due to the specific nature should be characterized by a short time of the beginning and end of setting, low shrinkage, good adhesion to the substrates and workability at running. The type of cement used has a significant influence on this parameter. The change in the physical properties of stucco mortars in which Portland cement was gradually replaced with AliCem sulphoaluminate cement and Górkal 70 aluminate cement. For this purpose, two sets of samples were prepared, in the first set the percentage of Górkal 70 cement in relation to the entire cement was 15, 20, 25, 30 and

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Lopes, Camila de Carvalho Almança, Renata Borges Rodrigues, André Luis Faria e. Silva, Paulo Cézar Simamoto Júnior, Carlos José Soares, and Veridiana Resende Novais. "Degree of Conversion and Mechanical Properties of Resin Cements Cured Through Different All-Ceramic Systems." Brazilian Dental Journal 26, no. 5 (2015): 484–89. http://dx.doi.org/10.1590/0103-6440201300180.

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Abstract: The aim of this study was to verify the degree of conversion (DC), Vickers microhardness (VH) and elastic modulus (E) of resin cements cured through different ceramic systems. One 1.5-mm-thick disc of each ceramic system (feldspathic, lithium dissilicate and zircônia veneered with feldspathic) was used. Three dual-cured (Allcem, Variolink II and RelyX U200) and one chemically-cured (Multilink) resin cements were activated through ceramic discs. For dual-cured resin cements was used a conventional halogen light-curing unit (Optilux 501 at 650 mW/cm2 for 120 s). Samples cured without t

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Al-Saleh, Samer, Turki W. Aboghosh, Mousa S. Hazazi, et al. "Polymer-Based Bioactive Luting Agents for Cementation of All-Ceramic Crowns: An SEM, EDX, Microleakage, Fracture Strength, and Color Stability Study." Polymers 13, no. 23 (2021): 4227. http://dx.doi.org/10.3390/polym13234227.

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The aim of the study was to compare microleakage and fracture loads of all ceramic crowns luted with conventional polymer resins and polymeric bioactive cements and to assess the color stability of polymeric bioactive cements. Seventy-five extracted premolar teeth were tested for fracture loads and microleakage in all-ceramic crowns cemented with two types of polymeric bioactive cements and resin cements. In addition, the degree of color change for each cement with coffee was assessed. Thirty maxillary premolar teeth for fracture loads and thirty mandibular premolar teeth for microleakage were

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Sanytsky, M. A., T. P. Kropyvnytska, and R. Yu Trefler. "MODIFIED SULPHATE-RESISTANT PORTLAND CEMENTS WITH THE ZEOLITE ADDITIVE." Bulletin of Odessa State Academy of Civil Engineering and Architecture, no. 87 (June 3, 2022): 100–107. http://dx.doi.org/10.31650/2415-377x-2022-87-100-107.

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The article shows that one of the ways to increase the sulfate resistance of cements is to use as an additive of pozzolanic action based on highly dispersed zeolite, which increases the corrosion resistance of concrete. Physical-chemical properties of zeolite tuff as a mineral constituent of Portland cements with the addition of pozzolana are presented. The use of modern grinding technology by separate grinding of Portland cement clinker and natural zeolite in mills with separators of the latest generation allows to obtain high quality Portland cement with zeolite CEM II/A-P 42.5 R PJSC "Ivano

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Oliveira, Danielle Nascimento Silva, Ulisses Targino Bezerra, S. L. D. Beltrão, Alexsandra C. Chaves, Ana M. G. D. Mendonça, and Gelmires Araújo Neves. "Oil Well Cement Developed from Common Cement: Physical, Chemical and Mineral Characterization." Materials Science Forum 805 (September 2014): 558–63. http://dx.doi.org/10.4028/www.scientific.net/msf.805.558.

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This study aims to characterize a new type of cement, produced from the mixture of common Portland cements, which could be used as an option in the cementing of oil wells. To enable this study a linear programming method was used for the composition of the new cement, then, characterization tests were performed through particle size analysis by laser diffraction, chemical analysis by EDX, thermogravimetric analysis, X-ray diffraction, setting time, compressive strength. The results allowed the conclusion that the new formulated cement presented low C3A content, time setting superior to the Por

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SHINMI, Tatsuo, Takashi CHABAYASHI, and Hiroyoshi KATO. "PROPERTIES OF BLAST FURNACE SLAG CEMENT TYPE B USING THE LOW BURNING-TEMPERATURE TYPE CLINKER." Cement Science and Concrete Technology 71, no. 1 (2017): 302–7. http://dx.doi.org/10.14250/cement.71.302.

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Oliveira, Danielle Nascimento Silva, Gelmires Araújo Neves, Ulisses Targino Bezerra, Alexsandra C. Chaves, and B. Silveira Lira. "Portland Cement for the Cementing of Oil Wells Developed with the Aid of the Rietveld Refinement Method." Materials Science Forum 805 (September 2014): 350–55. http://dx.doi.org/10.4028/www.scientific.net/msf.805.350.

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The use of the Rietveld refinement method has been highlightened as essential in the characterization of polycrystalline materials. With the aid of this method, combined with the application of the X-ray diffraction, it was possible to develop a type of cement that can temporarily substitute the Portland cement for Oil well. This cement was developed from the mixture of Portland cements commonly found in the market. The cements were passed through various sieves, then characterized by X-ray diffraction, being identified the main phases (C3A, C4AF, C3S and C2S) and quantified by the Rietveld re

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Klemczak, Barbara, Maciej Batog, Zbigniew Giergiczny, and Aneta Żmij. "Complex Effect of Concrete Composition on the Thermo-Mechanical Behaviour of Mass Concrete." Materials 11, no. 11 (2018): 2207. http://dx.doi.org/10.3390/ma11112207.

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The current work presents the complex investigation of the influence of cement and aggregate type on the thermo-mechanical behavior of mass concrete. Six types of cement with different amounts of non-clinker constituents and four types of aggregates are used in experimental tests. Particular attention was given to the low clinker cements with high amounts of siliceous fly ash and ground blast furnace slag. The experimental research covered the determination of thermal, mechanical, and rheological properties of early age concrete with different constituents. Experimental results have been used

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Mehta, Shak, Tarun Kalra, Manjit Kumar, Ajay Bansal, Abhiskek Avasthi, and Shefali Singh Malik. "To Evaluate the Solubility of Different Permanent and Temporary Dental Luting Cements in Artificial Saliva of Different pH Values at Different Time Intervals—An In Vitro Study." Dental Journal of Advance Studies 8, no. 03 (2020): 092–101. http://dx.doi.org/10.1055/s-0040-1714321.

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Abstract Introduction Luting cements are susceptible to attack by moisture during the initial setting period that can result in an increased solubility. The aim of this in vitro study was to evaluate the solubility of different permanent and temporary dental luting cements in artificial saliva of different pH values at different time intervals. Materials and Methods Eight commercial luting cements were used. Out of which five were permanent cements (Rely X lute2, zinc phosphate cement, zinc polycarboxylate cement, Rely X U-200, GC GIC) and three temporary cements (ZOE, Oratemp NE, Temposil). A

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