Advances in Cement Research最新文献_第10页

Construction, Properties and Mechanism of Polymer/Organic Compound High Temperature Retarder for Oil and Gas Exploration and Development 油气勘探开发用高分子/有机复合高温缓速剂的结构、性能及机理

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-05-13 DOI: 10.1680/jadcr.21.00047

Jin‐hua Huo, Xing Zhang, Ruizhi Zhang, Bai-song Yu

{"title":"Construction, Properties and Mechanism of Polymer/Organic Compound High Temperature Retarder for Oil and Gas Exploration and Development","authors":"Jin‐hua Huo, Xing Zhang, Ruizhi Zhang, Bai-song Yu","doi":"10.1680/jadcr.21.00047","DOIUrl":"https://doi.org/10.1680/jadcr.21.00047","url":null,"abstract":"During the process of oil and gas exploration and development, cementing operation is the key factor to ensure oil well productivity release, and the performance of additives is directly related to the success or failure of cementing. In this study, the polymer retarder PID-1 was synthesized by aqueous solution polymerization, the chemical structure, thermal stability and micro-structure of PID-1 were studied by infrared spectroscopy, thermogravimetric analysis and scanning electron microscopy. Moreover, the retarding effect and mechanism of PID-1 was analyzed based on low field nuclear magnetic resonance analysis, adiabatic calorimetry and scanning electron microscopy. Then, the polymer/organic compound high temperature retarder PID-2 was constructed by adding organic compound PN with well retarding property, and then the retarding effect, thickening property, temperature and dosage sensitivity of PID-2 were investigated. Combined with porosity evolution, type and content of hydration products, the internal mechanism of retarder PID-2 on early mechanical strength development of cement slurry system was revealed.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45277727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Mechanics behaviors study of Hybrid fiber reinforced cementitious composites exposed high temperatures 高温下混杂纤维增强胶凝复合材料力学行为研究

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-05-09 DOI: 10.1680/jadcr.21.00188

Gao Shuling, Zhang Jiayao, Zhu Yanping, Wang Zhe

{"title":"Mechanics behaviors study of Hybrid fiber reinforced cementitious composites exposed high temperatures","authors":"Gao Shuling, Zhang Jiayao, Zhu Yanping, Wang Zhe","doi":"10.1680/jadcr.21.00188","DOIUrl":"https://doi.org/10.1680/jadcr.21.00188","url":null,"abstract":"Hybrid Engineering Cementitious Composite (HECC) combines different fibers’ advantages, but based on the current research, the mechanical behaviors exposed to high temperature of HECC mixed with Polyvinyl Alcohol fiber, steel fiber, and basalt fiber still need to be much more studied. HECC's mechanical properties can be obtained from tensile and compression experiments. The mechanical properties investigation of PVA-ECC(mixed with only PVA fiber), BF-ECC(mixed with only BF), SF-ECC(mixed with only SF), HECC-PB(mixed with PVA and BF), and HECC-PS (mixed with PVA and SF) adding 65%, 70%, and 78% fly ash individually were conducted at room temperature. The mechanical properties experiment after high temperature of the above five materials mixed with 70% fly ash were conducted, which was heated to 200°C, 400°C, 600°C, and cooled to room temperature. According to specimen's appearance change, strength change, mass loss, ductility loss and failure form, HECC-PS has the best tensile and compressive behaviors after exposing high temperature, which can be as plastering layer on masonry structure surface to ensure the safety of masonry at high-temperature environment.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48064788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of alkali sulfates in clinker on hydration and hardening properties of cement incorporating SCMs 熟料中碱硫酸盐对含SCMs水泥水化和硬化性能的影响

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-05-03 DOI: 10.1680/jadcr.21.00110

Ying Ma, J. Qian

引用次数: 1

Effects of compound mineral admixtures on properties of magnesium oxysulfate cement 复合矿物掺合料对氧硫酸镁水泥性能的影响

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-05-03 DOI: 10.1680/jadcr.22.00006

Na Zhang, Hong-fa Yu, Hai-yan Ma, M. Ba, Haoxia Ma

{"title":"Effects of compound mineral admixtures on properties of magnesium oxysulfate cement","authors":"Na Zhang, Hong-fa Yu, Hai-yan Ma, M. Ba, Haoxia Ma","doi":"10.1680/jadcr.22.00006","DOIUrl":"https://doi.org/10.1680/jadcr.22.00006","url":null,"abstract":"Adding mineral admixtures is a green, economic and effective method to improve the properties of magnesium oxysulfate (MOS) cement. Based on modified MOS cement by low calcium fly ash (L-FA), high calcium fly ash (H-FA) and granulated blast furnace slag (G-BS), the effects of L-FA, H-FA and G-BS and SF double mixing on the properties of MOS cement were studied by characterizing the compressive strength, water resistance, hydration heat, hydration products and micropore structure characteristics, and the modification mechanism of mineral admixtures was discussed. The results show that the L-FA, G-BS and SF double mixing can further optimize the hydration product composition and micropore structure of MOS cement, thus improving its compressive strength and water resistance. The hydration reaction rate of MOS cement and 5·1·7 phase content in the hydration products is increased by H-FA and SF double mixing, but the micropore structure is not further optimized, which is the reason why the water resistance of MOS cement with H-FA and SF is not improved. The research results enrich the basic theory of mineral admixtures to improve the properties of MOS cement and provides theoretical guidance for its practical application.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45092210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Novel one-part fly ash alkali-activated cements for ambient applications 用于环境应用的新型单组分粉煤灰碱活性水泥

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-04-21 DOI: 10.1680/jadcr.21.00144

Oscar Tarique, M. Kovtun

引用次数: 2

Performance evaluation of a green mortar developed from a ternary eco-cement of industrial solid wastes 工业固体废弃物三元生态水泥绿色砂浆性能评价

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-04-19 DOI: 10.1680/jadcr.21.00102

D. Vo, C. Hwang, Trong‐Phuoc Huynh

{"title":"Performance evaluation of a green mortar developed from a ternary eco-cement of industrial solid wastes","authors":"D. Vo, C. Hwang, Trong‐Phuoc Huynh","doi":"10.1680/jadcr.21.00102","DOIUrl":"https://doi.org/10.1680/jadcr.21.00102","url":null,"abstract":"This study evaluates the performance of green mortar incorporating an eco-cement made from various proportions of rice husk ash (RHA), ground granulated blast furnace slag (GGBFS), and circulation fluidized bed combustion fly ash (CFA). Different RHA contents of 15 wt%, 30 wt%, and 45 wt% were used to replace GGBFS (by weight), respectively, and these mixtures were activated by 15 wt%, 20 wt%, and 25 wt% CFA by the total weight of GGBFS and RHA. Engineering properties of the mortars were examined by compressive strength, splitting tensile strength, water absorption, porosity, and dynamic Young's modulus, while the sulfate resistance and scanning electron micrographs analysis were conducted to evaluate the durability and microstructure of the mortar samples. Test results demonstrated that the content of the RHA and CFA strongly impacted the properties of these samples. Based on the obtained results, the samples with 20 wt% CFA and < 30 wt% RHA showed the best performance at later ages. Also, CFA decreased the sulfate resistance of the green mortar samples, while RHA increased sulfate resistance and significantly reduced thermal conductivity. Furthermore, the scanning electron micrographs exhibited the amorphous gels and the ettringite crystal-like phase, promoting a denser microstructure of the mortars.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43530724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Quantitative Study on the Synergistic Effect between Limestone Powder and Supplementary Cementitious Materials 石灰石粉与补充胶凝材料协同作用的定量研究

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-04-01 DOI: 10.1680/jadcr.21.00027

Dehui Wang, Huangfei Jia

{"title":"A Quantitative Study on the Synergistic Effect between Limestone Powder and Supplementary Cementitious Materials","authors":"Dehui Wang, Huangfei Jia","doi":"10.1680/jadcr.21.00027","DOIUrl":"https://doi.org/10.1680/jadcr.21.00027","url":null,"abstract":"As an industrial solid waste of limestone quarry, limestone powder (LP) is often used in cement-based materials to reduce cost and carbon dioxide emission. It is well-known that the synergistic effect between LP and alumina-rich supplementary cementitious materials (SCMs) influences the properties of cement-based materials. To quantitative study the synergistic effect, the hydration heat, hydration products and porosity of cement pastes with different binders were investigated. Test results showed that the synergistic effect between limestone powder and fly ash (FA) or slag (S) improved the hydration degree and increased the total hydration heat of cement pastes. When fly ash and slag were incorporated, the 3d consumed CaCO3 content increased from 2.0 wt.% to 4 wt.%, and the 180d consumed CaCO3 content increased from 2.4 wt.% to 9.3 wt.% and 11.8 wt.%, respectively. The incorporation of fly ash or slag also increased the diffraction peak of carboaluminate, which indicated more carboaluminate were formed. The synergistic effect between limestone powder and supplementary cementitious materials refines the pore structure and reduces the porosity of cement pastes. The calculated synergistic effect between limestone powder and fly ash or slag increased the density of cement pastes by 1.04% or1.41%, respectively, and it correspondingly improved the compressive strength of cement pastes.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44920929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of mechanical activation on reaction mechanism of one-part fly ash/slag-based geopolymer 机械活化对单组分粉煤灰/矿渣基地质聚合物反应机理的影响

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-02-16 DOI: 10.1680/jadcr.21.00033

Yuanda Wang, Xuefang Wang, Y. Lou, F. Gao, Wenda Wu

{"title":"Effect of mechanical activation on reaction mechanism of one-part fly ash/slag-based geopolymer","authors":"Yuanda Wang, Xuefang Wang, Y. Lou, F. Gao, Wenda Wu","doi":"10.1680/jadcr.21.00033","DOIUrl":"https://doi.org/10.1680/jadcr.21.00033","url":null,"abstract":"One-part geopolymers are a low-carbon alternative to Portland cement, and are more suitable in engineering applications compared to two-part geopolymers. In this paper, the effects of mechanical activation on the properties of one-part fly ash/slag-based geopolymer paste and the mechanism of the pozzolanic reaction are studied. Simple mixing was established as the control group, and the effect of mechanical activation on the macroscopic properties of geopolymers was studied through testing compressive strength, fluidity and setting time. The effect of mechanical activation on the pozzolanic reaction of geopolymers was assessed using isothermal calorimetry, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis (TG-DTG). The results showed that the 28-day compressive strength of geopolymer formed by mechanical activation was 26% higher than that by simple mixing. Workability and fluidity were also enhanced. The reactivity of the precursor was improved by mechanical activation, particularly with fly ash. Mechanically activated fly ash experienced a pozzolanic reaction within 7 days, while undisturbed fly ash produced pozzolanic activity after 14–28 days. The implications of these results in terms of the influence of mechanical activation on pozzolanic activity are subsequently discussed. Highlights · Mechanical activation improved the setting time, fluidity, and compressive strength of one-part fly ash/slag-based geopolymer. · Mechanical activation significantly improved the pozzolanic activity of fly ash. · Mechanical activation lessened the carbonization of one-part fly ash/slag-based geopolymer.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45674528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effect of flotation phosphorus tailings on the microstructure and macroscopical strength of white Portland cement 浮选磷尾矿对白硅酸盐水泥微观结构和宏观强度的影响

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-02-16 DOI: 10.1680/jadcr.21.00086

Zhen Wang, Lei Huang, Pinghua Lian, Shaowen Huang

{"title":"Effect of flotation phosphorus tailings on the microstructure and macroscopical strength of white Portland cement","authors":"Zhen Wang, Lei Huang, Pinghua Lian, Shaowen Huang","doi":"10.1680/jadcr.21.00086","DOIUrl":"https://doi.org/10.1680/jadcr.21.00086","url":null,"abstract":"The phosphate mining industry produces large amounts of tailings. Rational utilization of phosphorus tailings (PT) is of great significance for the full utilization of resources and environmental protection. In this study, PT was used as part of raw materials to prepare white Portland cement clinker (WPCC). XRD, SEM-EDS, TG-DSC, and FTIR, etc. were used to study the effect of PT on mineral composition, ionic solid solution and strength of WPCC. he results showed as follows: PT as part of the raw material of WPCC could significantly improve the burnability of raw materials, increase the content of liquid phase, and promote the formation of minerals; The addition of PT stabilized the α’-C2S crystal and promoted the C3S crystal in the clinker tend to change from T-type to M-type; There was no significant effect for PT's addition on the decomposition temperature of CaCO3, the appearance temperature of liquid phase and the formation temperature of C3S; Compared with the control group, when PT content was 2.5%, WPCC had the highest strength. its 3d strength increased by 46.86% and 28d strength increased by 82.59%.","PeriodicalId":7299,"journal":{"name":"Advances in Cement Research","volume":" ","pages":""},"PeriodicalIF":2.0,"publicationDate":"2022-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48949831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Effects of calcination process of Salt Lake magnesium slag on properties of magnesium oxysulfide cement 盐湖镁渣煅烧工艺对硫化镁水泥性能的影响

IF 2 4区工程技术

Advances in Cement Research Pub Date : 2022-02-16 DOI: 10.1680/jadcr.21.00145

Xiuquan Liu, J. Wen, Chenggong Chang, Weixin Zheng, Qiyuan Liu, Xueying Xiao, Jin-mei Dong

引用次数: 1