https://www.frontiersin.org/journals/materials/sections/structural-materials RSS Feed for Structural Materials section in the Frontiers in Materials journal | New and Recent Articles en-us Frontiers Feed Generator,version:1 2026-07-29T09:11:49.637+00:00 60 https://www.frontiersin.org/articles/10.3389/fmats.2026.1867691 https://www.frontiersin.org/articles/10.3389/fmats.2026.1867691 2026-07-29T00:00:00Z Original Research Shijun WangTeng TongWenming ZhangMeng-En YueXu Wang https://www.frontiersin.org/articles/10.3389/fmats.2026.1886423 https://www.frontiersin.org/articles/10.3389/fmats.2026.1886423 2026-07-24T00:00:00Z Original Research Xinyu YaoGuangcheng ZhangYu LiuHongliu RongFujia Meng https://www.frontiersin.org/articles/10.3389/fmats.2026.1879511 https://www.frontiersin.org/articles/10.3389/fmats.2026.1879511 2026-07-22T00:00:00Z Original Research Jingjing HeRan TangZhihao HeHaiwei WangXinchao ZhengFang LiuFangping Li mPCMs dosage > silica fume content. Furthermore, all factors exhibited a highly significant non-linear quadratic effect, characterized by an initial increase followed by a subsequent decrease. A single-response optimization algorithm was utilized to determine the optimal mixture design, targeting the maximization of mechanical properties under a fixed printability constraint: a W/B ratio of 0.265, a silica fume content of 7.22%, and an mPCMs dosage of 2.72%. Experimental validation demonstrated that the measured 28-day compressive strength of the optimal mixture was 46.54 MPa, yielding a relative error of only 6.26% compared to the predicted value. This confirmed the high accuracy and reliability of the established quadratic regression prediction model. This study provides a reliable material foundation and scientific basis for the development of highly efficient 3D printed concrete components with integrated thermal management functionalities.]]> https://www.frontiersin.org/articles/10.3389/fmats.2026.1891499 https://www.frontiersin.org/articles/10.3389/fmats.2026.1891499 2026-07-20T00:00:00Z Original Research Min ZhangJinhua FengDehui GuoYuting FuShuze XiaoHua YuanYunlu Hou https://www.frontiersin.org/articles/10.3389/fmats.2026.1919334 https://www.frontiersin.org/articles/10.3389/fmats.2026.1919334 2026-07-20T00:00:00Z Editorial Jiangyu WuWeiqiang ChenHao ShiDan MaHong S. Wong https://www.frontiersin.org/articles/10.3389/fmats.2026.1894197 https://www.frontiersin.org/articles/10.3389/fmats.2026.1894197 2026-07-16T00:00:00Z Original Research Rong NiuXu WuJingzhuo ZhaoBo HuHongtao QinJunlin Zhang 40%) caused significant degradation in mechanical and durability properties due to layer structure disintegration; compressive strength decreased by 30.9%–46.9%, flexural strength fell by 40%, and freeze-thaw resistance declined by over 10%. Drying shrinkage for all mixtures conformed to the EXPASSOC model (R2 > 0.99), exhibiting a three-stage pattern where 85% of shrinkage occurred within 60 days, followed by stabilization after 100 days. A derived cracking resistance index confirmed that SS dosages of >40% provided optimal anti-cracking performance. Fuzzy comprehensive algorithm analysis identified SS (40%–80% incorporation) as the optimal material choice. Consequently, CG requires strict limitation to ≤40%, whereas CW is permissible at ≤ 40% (excluding fine aggregates). These findings provide theoretical support for the classified resource utilization of multi-source solid wastes in highway base courses.]]> https://www.frontiersin.org/articles/10.3389/fmats.2026.1904975 https://www.frontiersin.org/articles/10.3389/fmats.2026.1904975 2026-07-15T00:00:00Z Original Research Liqun GuoBo LiXu Chang https://www.frontiersin.org/articles/10.3389/fmats.2026.1862791 https://www.frontiersin.org/articles/10.3389/fmats.2026.1862791 2026-07-14T00:00:00Z Original Research Juanjuan WenYi JiangYi Peng https://www.frontiersin.org/articles/10.3389/fmats.2026.1698212 https://www.frontiersin.org/articles/10.3389/fmats.2026.1698212 2026-07-10T00:00:00Z Original Research Jinlong GuoWenjuan ZhaoTao WuShujun WangBin SunManbin YangTengfei YaoBo Li https://www.frontiersin.org/articles/10.3389/fmats.2026.1858512 https://www.frontiersin.org/articles/10.3389/fmats.2026.1858512 2026-07-07T00:00:00Z Original Research Biao ShuChenglin DuXinxian LiWen NieHaobin CuiJia LiBo Chen 98% purity), originating from the continuous leaching of free calcium in highly alkaline shotcrete. (2) The accelerator exhibits a nonlinear regulatory effect; a 10% dosage serves as the optimal independent threshold to prevent severe calcium leaching caused by micro-defects at higher dosages. (3) For water reducers, a 5% dosage is identified as the optimal independent threshold, whereas increasing the dosage to 10% triggers a severe crystallization outbreak, indicating the highest clogging risk. (4) Fly ash demonstrates a robust linear inhibitory effect on crystallization accumulation, with a 20% dosage acting as its optimal independent threshold. Furthermore, aggressive highly mineralized water (e.g., NaHCO3-type) directly skips atmospheric CO2 diffusion, rapidly reacting with leached calcium and exponentially accelerating the clogging process. These findings shift the engineering paradigm from passive mitigation to active source interception, providing critical quantitative references for suppressing early-stage calcium leaching and laying a theoretical foundation for future multi-factor orthogonal mix design in deep-buried karst tunnels.]]> https://www.frontiersin.org/articles/10.3389/fmats.2026.1869575 https://www.frontiersin.org/articles/10.3389/fmats.2026.1869575 2026-07-07T00:00:00Z Original Research Yong MaJiangang ZhangQingbi ZhaoShengdun ZhaoFan Li https://www.frontiersin.org/articles/10.3389/fmats.2026.1872779 https://www.frontiersin.org/articles/10.3389/fmats.2026.1872779 2026-07-02T00:00:00Z Original Research Xin LuJingjing HuangYaogang TianXiaohui YanJing JiangChunlin YangJun Zhang https://www.frontiersin.org/articles/10.3389/fmats.2026.1900366 https://www.frontiersin.org/articles/10.3389/fmats.2026.1900366 2026-07-01T00:00:00Z Editorial Jue LiChen ChenMiao Yu https://www.frontiersin.org/articles/10.3389/fmats.2026.1857441 https://www.frontiersin.org/articles/10.3389/fmats.2026.1857441 2026-07-01T00:00:00Z Original Research Xiaoyu YuXuejuan CaoTianqiang JiangZhe WuGuilian CaoMiao He https://www.frontiersin.org/articles/10.3389/fmats.2026.1845994 https://www.frontiersin.org/articles/10.3389/fmats.2026.1845994 2026-06-26T00:00:00Z Original Research Yixiong GanWengang LiuBo ZhangYe ChengWende ZhuWeipeng HaoChen Wang https://www.frontiersin.org/articles/10.3389/fmats.2026.1816072 https://www.frontiersin.org/articles/10.3389/fmats.2026.1816072 2026-06-23T00:00:00Z Original Research Tomasz BartkowiakMichał JakubowiczPatryk MietlińskiMichał Wieczorowski 0.9) between both metrics and laser power. The results demonstrate that insufficient energy input promotes the formation of re-entrant geometries through incomplete melting and particle bonding. The proposed method enables quantitative assessment of complex AM surface features that are inaccessible to traditional instruments, offering a pathway toward improved process control, surface quality evaluation, and functional performance optimization in metal AM. The geometry-based nature of the method suggests its applicability to a broader range of materials and additive manufacturing processes, provided appropriate imaging resolution is achieved.]]> https://www.frontiersin.org/articles/10.3389/fmats.2026.1831858 https://www.frontiersin.org/articles/10.3389/fmats.2026.1831858 2026-06-16T00:00:00Z Original Research Chongyang WangJingwei GongChong ShiMiaomiao GongZeshi Ren https://www.frontiersin.org/articles/10.3389/fmats.2026.1813690 https://www.frontiersin.org/articles/10.3389/fmats.2026.1813690 2026-06-15T00:00:00Z Original Research Yutai LiuRuiqing HaoLin LiaoJinchang ZhaoZhiling LiaoZebiao HouMingji Ding https://www.frontiersin.org/articles/10.3389/fmats.2026.1715897 https://www.frontiersin.org/articles/10.3389/fmats.2026.1715897 2026-06-12T00:00:00Z Original Research Muawia DafallaAbdullah A. Shaker https://www.frontiersin.org/articles/10.3389/fmats.2026.1836853 https://www.frontiersin.org/articles/10.3389/fmats.2026.1836853 2026-06-11T00:00:00Z Original Research Haitao ZhouXianwei MaXiao WangFeng jian ZhangLanzhen Yu