Materials and Structures最新文献_第3页

Study on the skid resistance decay of submerged asphalt pavements based on texture parameters 基于纹理参数的水下沥青路面抗滑性衰减研究

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-11 DOI: 10.1617/s11527-024-02484-x

Li Junjie, Wang Hong, Guo Rongxin, Bao Lingchen, Lv Binjin, Huang Kaiyong, Zhou Bin, Yan Feng

{"title":"Study on the skid resistance decay of submerged asphalt pavements based on texture parameters","authors":"Li Junjie, Wang Hong, Guo Rongxin, Bao Lingchen, Lv Binjin, Huang Kaiyong, Zhou Bin, Yan Feng","doi":"10.1617/s11527-024-02484-x","DOIUrl":"10.1617/s11527-024-02484-x","url":null,"abstract":"<div><p>It is well known that prolonged rainwater erosion can adversely affect the surface texture of asphalt pavements, leading to a rapid decline in their skid resistance. This study utilized a small-scale accelerated loading device, a high-precision 3D scanner, and digital image processing technology to investigate the surface texture wear process and skid resistance decay trends of basalt asphalt pavement and steel slag asphalt pavement under water erosion and traffic load. The results indicate that under submerged conditions, the skid resistance (BPN) of asphalt pavement declines rapidly during the first 500,000 load cycles, and the rate of decline gradually stabilizes after 500,000 cycles. After 1.2 million load cycles, the BPN of basalt pavement decreased by 28.10%, while that of steel slag pavement decreased by 21.18%, indicating that the skid resistance of steel slag pavement is significantly better than that of basalt pavement. Texture parameters—namely, root mean square height, peak material volume, core material volume, void volume of the core, and valley void volume—exhibited the same decay trend as BPN. The average correlation coefficients between BPN and texture parameters were 0.846, 0.848, 0.898, and 0.916, respectively, indicating that texture parameters can be used as evaluation indicators for skid resistance decay. Finally, the decay of pavement skid resistance was predicted using an exponential decay equation.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1617/s11527-024-02484-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating the effect of retarder on cement hydration and setting delay under hot weather curing condition using non-destructive methods 采用无损方法评估缓凝剂对高温天气固化条件下水泥水化和凝结延迟的影响

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-11 DOI: 10.1617/s11527-024-02496-7

Young Hwan Bae, Yu-Rhee Ahn, Yubin Jun, Hong Jae Yim

{"title":"Evaluating the effect of retarder on cement hydration and setting delay under hot weather curing condition using non-destructive methods","authors":"Young Hwan Bae, Yu-Rhee Ahn, Yubin Jun, Hong Jae Yim","doi":"10.1617/s11527-024-02496-7","DOIUrl":"10.1617/s11527-024-02496-7","url":null,"abstract":"<div><p>Hot weather concreting has gained significant attention in recent years due to the increasing annual mean temperature. The accelerated hydration process under high temperature curing conditions can lead to premature hydration products, therefore, retarding admixtures are recommended to control the setting time. Various non-destructive methods were analyzed to estimate the setting time of cement-based materials. However, the evaluation of delayed cement hydration with added retarding admixtures has not been reported. This study aims to monitor the two non-destructive methods, electrical resistivity and ultrasonic pulse velocity, during the initial 24 h in cement pastes with added calcium lignosulfonate, the most common retarder. The setting time of cement pastes, cured at temperatures of 20, 30, and 40 ℃, was evaluated based on the rise time of these non-destructive measurements. Further, the effect of added retarder on the setting delay in cement paste was discussed and compared with the Vicat needle test. The results of X-ray diffraction and thermogravimetric analysis at the rising time of electrical resistivity revealed that the use of the retarding admixture induces delayed hydration reaction of C<sub>3</sub>S, C<sub>2</sub>S, and C<sub>3</sub>A, key hydration products influencing the setting delay.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Study on the influence of roughness and coarse aggregate area on UHPC-NC interface bonding performance 粗糙度和粗集料面积对 UHPC-NC 界面粘结性能的影响研究

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-09 DOI: 10.1617/s11527-024-02507-7

Wen Sun, Jiangjiang Zhang, Shenqi Yang, Xiaolong Chen, Jing Wu, Qiong Wu, Yanhua Yang

{"title":"Study on the influence of roughness and coarse aggregate area on UHPC-NC interface bonding performance","authors":"Wen Sun, Jiangjiang Zhang, Shenqi Yang, Xiaolong Chen, Jing Wu, Qiong Wu, Yanhua Yang","doi":"10.1617/s11527-024-02507-7","DOIUrl":"10.1617/s11527-024-02507-7","url":null,"abstract":"<div><p>The aim of this study is to clarify the effect of roughening the surface of normal concrete (NC) substrates on the interfacial bonding performance, and the effect of substrate surface roughness and coarse aggregate area on the interfacial bonding performance was investigated by digital image technology. The results showed that the shear damage model of the roughened ultra-high performance concrete (UHPC) and NC composite specimens was divided into linear elasticity, yielding, and damage stages; the failure loads of the gouge interface group and the high-pressure water jet interface group were elevated by 18.3–33.9% and 43.0–140.0%, respectively, compared with those of the smooth interface group. In addition, the chiselled interface group and high-pressure water jetting interface group obtained an overall failure load of 44.2–50.0% and 53.4–90.0%, respectively; the exposed area of coarse aggregate on the substrate surface and the roughness of the concrete surface of the substrate showed a linear correlation with the interfacial shear strength, and the presence of coarse aggregate provided more mechanical anchorage points at the interface and increased the contact area with the UHPC. Substrate surface roughness increased the probability of steel fibre insertion into the groove of the substrate, and the formation of pin effect and bridge effect at the interface improved the shear slip capacity and bond strength at interface failure; substrate concrete surface roughness is a key parameter affecting the secondary damage of the UHPC-NC interface, and the degree of interface damage increased linearly with the increase of roughness.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142598911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Investigation into the flexural performance of novel precast sandwich wall panels 新型预制夹心墙板抗弯性能研究

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-07 DOI: 10.1617/s11527-024-02482-z

Chunquan Dai, Mingfa Hou, Ming Huang, Haiyang Yu

{"title":"Investigation into the flexural performance of novel precast sandwich wall panels","authors":"Chunquan Dai, Mingfa Hou, Ming Huang, Haiyang Yu","doi":"10.1617/s11527-024-02482-z","DOIUrl":"10.1617/s11527-024-02482-z","url":null,"abstract":"<div><p>The paper focuses on investigating a novel sandwich panel, which incorporates extruded polystyrene foam boards placed between the inner and outer concrete panels. These are connected using various types of shear connectors to achieve a composite action, meeting the bending resistance requirements. To study the structural performance of the sandwich panels, three representative specimens were designed. These specimens employed different types of shear connectors, namely, steel truss connectors with inclined bars at 45°, and GFRP connectors with inclined bars at 45° and 30°, respectively. The specimens underwent full-scale testing using a step-by-step four-point loading method. The test results indicated shear-compression failure of the specimens, exhibiting consistent failure modes across all specimens, and a composite action in resisting bending moments. Based on theoretical stress–strain diagrams and considering the slip phenomenon between the concrete panel and the connectors, this paper establishes an analytical model. It can reasonably estimate the ultimate load-carrying capacity of sandwich insulation panels under shear-compression failure, which has implications for subsequent engineering applications.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1617/s11527-024-02482-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of activator dosage and mass ratio of GGBFS to FA on 3D printing performance of kenaf geopolymer 活化剂用量和 GGBFS 与 FA 的质量比对 kenaf 土工聚合物 3D 打印性能的影响

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-07 DOI: 10.1617/s11527-024-02410-1

Xiao Kong, Li Dai, Shicai Chen, Yuan Guo, Zehuan Zhang, Shaojie Wang

{"title":"Effect of activator dosage and mass ratio of GGBFS to FA on 3D printing performance of kenaf geopolymer","authors":"Xiao Kong, Li Dai, Shicai Chen, Yuan Guo, Zehuan Zhang, Shaojie Wang","doi":"10.1617/s11527-024-02410-1","DOIUrl":"10.1617/s11527-024-02410-1","url":null,"abstract":"<div><p>Kenaf geopolymer for 3D printing is a promising representative for comprehensive and intelligent utilization of industrial and agricultural wastes. Aiming at exploring the effect of raw materials’ proportion on printing performances, alkali activator dosage (10 wt.%, 15 wt.%, 20 wt.%) and mass ratio of ground granulated blast furnace slag (GGBFS) to fly ash (FA) (15:85, 20:80, 25:75) were adopted as main variables in this paper. Results have shown that increasing the activator dosage and decreasing the mass ratio of GGBFS to FA can improve the flowability, and adjusting these two parameters can tailor the fluidity to a suitable range. Moreover, dry density of kenaf geopolymer was more significantly affected by alkali activator dosage compared with mineral powder ratio, and lightweight characteristic due to kenaf participation effectively improved shape retention ability of printed specimens. Besides, microstructure analysis further confirmed that with appropriate alkali activator dosage and mineral powder ratio, high level of geopolymerization reaction can be achieved to produce enough gel product for a satisfactory internal structure, which externally manifested as excellent printability and mechanical strength. Finally, formula with alkali activator dosage of 15 wt.% and GGBFS to FA mass ratio of 25:75 was recommended for satisfactory printing performance and mechanical properties.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Inorganic–organic hybrid geopolymers: evolution of molecular and pore structure, and its effect on mechanical and fire-retardant properties 无机-有机杂化土工聚合物：分子和孔隙结构的演变及其对机械和阻燃性能的影响

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-06 DOI: 10.1617/s11527-024-02501-z

Rashmi Singla, T. Mishra, T. C. Alex, Sanjay Kumar

{"title":"Inorganic–organic hybrid geopolymers: evolution of molecular and pore structure, and its effect on mechanical and fire-retardant properties","authors":"Rashmi Singla, T. Mishra, T. C. Alex, Sanjay Kumar","doi":"10.1617/s11527-024-02501-z","DOIUrl":"10.1617/s11527-024-02501-z","url":null,"abstract":"<div><p>In order to overcome the brittle behavior of conventional geopolymers, of late, a paradigm shift towards development of hybrid geopolymers has commenced. This study describes hybrids synthesized by co-milling metakaolin and solid organics (epoxy resin: diglycidyl ether of bisphenol A and hardener: dicyandiamide) followed by alkali activation. The developed hybrid geopolymers exhibit enhanced mechanical and physical properties. Physical and mechanical properties of such hybrids depend on the extent of molecular-level interactions and microstructural evolution during geopolymerisation. Evolution of molecular structure from precursor stage (co-milled samples) to hybrid geopolymers is studied using transmission electron microscopy (TEM) and <sup>27</sup>Al, <sup>13</sup>C, <sup>29</sup>Si solid-state nuclear magnetic resonance (NMR) spectroscopy. NMR and TEM analyses of the hybrid geopolymers illustrate the formation of Si–O–C bonds and uniform C distribution (with no phase separation); this confirms inorganic–organic chemical interactions during geopolymerisation. Detailed assessment of pore characteristics using TEM, mercury intrusion porosimeter, and Brunauer–Emmett–Teller reveal formation of a dense gel (with reduced pore size and pore volume) in hybrid geopolymer vis-à-vis MK-based inorganic geopolymer. The implication of such microstructural features on mechanical and physical properties is discussed. Lastly, the suitability of developed hybrids as fire-retardant materials used in mass transit applications is highlighted.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Assessment of waste eggshell powder as a limestone alternative in portland cement 将废弃蛋壳粉作为硅酸盐水泥中石灰石替代品的评估

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-06 DOI: 10.1617/s11527-024-02478-9

Beng Wei Chong, Pratik Gujar, Xijun Shi, Prannoy Suraneni

{"title":"Assessment of waste eggshell powder as a limestone alternative in portland cement","authors":"Beng Wei Chong, Pratik Gujar, Xijun Shi, Prannoy Suraneni","doi":"10.1617/s11527-024-02478-9","DOIUrl":"10.1617/s11527-024-02478-9","url":null,"abstract":"<div><p>The decarbonization of the concrete industry is an ongoing pursuit. One solution towards this goal is the use of limestone powder in portland cement. Waste eggshell has tremendous potential as an alternative calcite filler in cement due to its similarities with limestone. In this research, the feasibility of adding 15% and 35% ground eggshell in portland cement to make cement mortars was investigated. The hydration mechanism of eggshell and limestone blended cements was compared through the heat of hydration, phase assemblage, electrical resistivity, compressive strength, and shrinkage measurements. The experimental results showed that cement mortars with ground eggshell attained similar compressive strength as that with limestone. However, eggshell mixtures demand more mixing water to compensate the hydrophobicity of the eggshell membrane. The high calcite content in both eggshell and limestone accelerates the hydration of cement at 15% replacement, but ground eggshell retards cement hydration at 35% replacement due to the dominant influence of the membrane. Overall, eggshell waste is a feasible sustainable alternative to limestone powder at up to 15% portland cement replacement levels. Lifecycle assessment and cost analysis showed that adding 15% ground eggshell in cement concrete further reduces its embodied carbon and energy and cost compared to cement concrete containing limestone powder.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1617/s11527-024-02478-9.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142595453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Bulk adhesion of ice to concrete–strength 冰与混凝土的体积附着力-强度

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-05 DOI: 10.1617/s11527-024-02495-8

Anne Barker, Stephen Bruneau, Bruce Colbourne, Austin Bugden

{"title":"Bulk adhesion of ice to concrete–strength","authors":"Anne Barker, Stephen Bruneau, Bruce Colbourne, Austin Bugden","doi":"10.1617/s11527-024-02495-8","DOIUrl":"10.1617/s11527-024-02495-8","url":null,"abstract":"<div><p>This paper presents the results of a laboratory test program designed to investigate the adhesive effects of large-scale (bulk) ice on concrete. Medium-strength concrete cylinders were sawn into discs, and attached to a sample table. Freshwater ice samples, frozen using smaller, standard-sized concrete cylinders, were adhered to the concrete with both varying bond times and added weight during bonding. Shear strength tests were conducted at a set displacement rate, under a number of temperatures. The effect of these variables on the adhesive strength of ice to concrete was examined, as well as whether there was any noticeable removal of concrete cement paste or aggregate during testing. The tests indicate that the adhesive strength is negligible when the method of adhesion is “dry” (no liquid layer at the onset of adhesion). Tests with “wet” adhesion indicated a significantly higher strength. The nominal versus the apparent contact area had significant implications for the determination of the adhesive strength of the bond between the ice and the concrete. Removal of cement paste was evident in a number of tests, however the amount was not significant. The results have relevance for design of structures in a marine environment, such as revetement dams or rubblemound breakwaters, as well as for the standardization of adhesion tests with ice and concrete.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1617/s11527-024-02495-8.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autogenous shrinkage and cracking of ultra-high-performance concrete with soda residue as an internal curing agent 使用苏打渣作为内部养护剂的超高性能混凝土的自生收缩和开裂问题

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-05 DOI: 10.1617/s11527-024-02499-4

Yibo Yang, Xiaodong Yue, Baixi Chen, Wen Yang, Wenying Guo, Hengchang Wang

{"title":"Autogenous shrinkage and cracking of ultra-high-performance concrete with soda residue as an internal curing agent","authors":"Yibo Yang, Xiaodong Yue, Baixi Chen, Wen Yang, Wenying Guo, Hengchang Wang","doi":"10.1617/s11527-024-02499-4","DOIUrl":"10.1617/s11527-024-02499-4","url":null,"abstract":"<div><p>Autogenous shrinkage and shrinkage-induced cracking present significant challenges in ultra-high-performance concrete (UHPC). To address this issue, this study explores the feasibility of using soda residue (SR), an industrial waste product, as a sustainable internal curing agent for UHPC. Experimental results demonstrate that the inclusion of SR substantially mitigates shrinkage and cracking in UHPC, while also enhancing compressive strength. The use of SR with additional water showed comparable or superior performance in reducing shrinkage and cracking compared to higher dosages of SR. Through internal humidity measurements, thermogravimetric analysis, and scanning electron microscopy, two primary mechanisms for the improvement were identified: (1) SR increases internal humidity by releasing additional water, thus preventing shrinkage; and (2) the ettringite formation induced by SR expands the solid phase volume, compensating for shrinkage. Furthermore, utilizing SR as a recycled material not only improves the early-age properties of UHPC but also contributes to sustainable construction practices.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Predictive methods for the evolution of oil well cement strength based on porosity 基于孔隙度的油井水泥强度演变预测方法

IF 3.4 3区工程技术

Materials and Structures Pub Date : 2024-11-04 DOI: 10.1617/s11527-024-02493-w

Yuhao Wen, Zi Chen, Yuxuan He, Huiting Liu, Zhenggrong Zhang, Linsong Liu, Renzhou Meng, Yi Zeng

{"title":"Predictive methods for the evolution of oil well cement strength based on porosity","authors":"Yuhao Wen, Zi Chen, Yuxuan He, Huiting Liu, Zhenggrong Zhang, Linsong Liu, Renzhou Meng, Yi Zeng","doi":"10.1617/s11527-024-02493-w","DOIUrl":"10.1617/s11527-024-02493-w","url":null,"abstract":"<div><p>The oil well cement undergoes various physical and chemical changes during the hydration process, leading to the formation of pores of different sizes within the cement stone. These pores can affect the mechanical properties of the cement stone. In the civil engineering field, extensive attempts have been made to predict the mechanical properties of concrete based on pore parameters, yielding good results. This paper explores in detail the methods for predicting the strength of oil well cement based on porosity and pore size distribution. Through referencing the strength prediction methods for concrete in civil engineering, porosity and pore size distribution are used as prediction parameters. The accuracy of predictions made by empirical models and deep learning models is compared, and it is concluded that neither empirical formulas nor ordinary deep learning models can provide accurate fitting results. However, due to the optimization of its algorithm and structure, the KAN model can give more accurate predictions of the pore-size-strength relationship of cement stone. Additionally, the quantitative relationship between pore size and strength of cement stone is explored. The application of the KAN model in strength prediction provides strong guidance for monitoring and optimizing cementing quality during the construction process.</p></div>","PeriodicalId":691,"journal":{"name":"Materials and Structures","volume":"57 10","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142579438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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