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 2026-07-08T07:44:04.79+00:00 60 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.2026.1857441 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.2026.1900366 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.2026.1845994 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 https://www.frontiersin.org/articles/10.3389/fmats.2026.1795783 https://www.frontiersin.org/articles/10.3389/fmats.2026.1795783 2026-06-08T00:00:00Z Original Research Dongguo LiYuhang CuiHongjun ZhangXuemin ZhaoFanghui Guo foaming agent dosage > lime content. Ultrasonic pulse velocity correlated positively with cement content. This trend indicated increased matrix densification with higher cement content. SEM and EDS analyses confirmed that specimens with uniform distribution of elements (Si, Al, Ca, Fe) formed dense three-dimensional networks via hydration products. This microstructure thus conferred optimal structural integrity. The recommended optimal mix ratio for L.C.F.mix is lime:cement:fly ash = 6:8:88, with a water content of 52% and a foaming agent dosage of 1:45. The findings provide a scientific basis for large-scale application of the L.C.F.mix in hard-to-compact areas, such as abutment backs and narrow structures, and support advancements in green infrastructure and industrial waste recycling.]]> https://www.frontiersin.org/articles/10.3389/fmats.2026.1799264 https://www.frontiersin.org/articles/10.3389/fmats.2026.1799264 2026-06-04T00:00:00Z Original Research Lei ZhangYunsheng WangZhihua TanYanyun FanFasen JiangJian MiHongbiao Xu https://www.frontiersin.org/articles/10.3389/fmats.2026.1853214 https://www.frontiersin.org/articles/10.3389/fmats.2026.1853214 2026-05-26T00:00:00Z Original Research Wenhao Ren https://www.frontiersin.org/articles/10.3389/fmats.2026.1842532 https://www.frontiersin.org/articles/10.3389/fmats.2026.1842532 2026-05-21T00:00:00Z Original Research Junhui HeYuhan LuoXiaoyu LiuLiuyuan LanJunlin LiangXiaolong Yang https://www.frontiersin.org/articles/10.3389/fmats.2026.1824942 https://www.frontiersin.org/articles/10.3389/fmats.2026.1824942 2026-05-21T00:00:00Z Original Research Shaolong WuZheng ZhangZhiqiang HuoZhengxun YangJinwei Jia https://www.frontiersin.org/articles/10.3389/fmats.2026.1788487 https://www.frontiersin.org/articles/10.3389/fmats.2026.1788487 2026-05-20T00:00:00Z Original Research Qixiang YinQiangqiang ChengMingjiao Hou https://www.frontiersin.org/articles/10.3389/fmats.2026.1799597 https://www.frontiersin.org/articles/10.3389/fmats.2026.1799597 2026-05-20T00:00:00Z Original Research Dengqin YuZhibao ZhangHongtao QinXu WuJin Chen https://www.frontiersin.org/articles/10.3389/fmats.2026.1799973 https://www.frontiersin.org/articles/10.3389/fmats.2026.1799973 2026-05-20T00:00:00Z Original Research Zixu WangKepeng HouHuafen SunYalei ZheJunwei MaYubang Li https://www.frontiersin.org/articles/10.3389/fmats.2026.1839636 https://www.frontiersin.org/articles/10.3389/fmats.2026.1839636 2026-05-18T00:00:00Z Original Research Ao DongZheng ZhangRuiyun ZhuGuoshu WangZiyao PingTingting XieDongzhao LiErhu YanLinbing Wang