Employing factorial mixture designs combined with interaction-effect analysis to evaluate the combined performance of multi-component tunnel
Research gap analysis derived from 5 engineering papers in our local library.
The gap
employ factorial mixture designs combined with interaction-effect analysis to evaluate the combined performance of multi-component tunnel lining concrete - combine cracking tests with shrinkage, pore-structure, and microstructural characterization - conduct long-term permeability evaluation - perform field-scale verification of optimized tunnel lining concrete mixtures
Evidence profile
Sourced from the stated research gap and conclusions and future-work section of the source papers, classified as general, spanning 4 journals. Those papers have been cited 1 times in total.
Research trend
Established — well-defined area with open sub-problems.
Supporting evidence — 5 representative gaps
- Optimization of sustainable concrete mix designs through partial replacement of ordinary Portland cement with fly ash and ground granulated blast-furnace slag: a case study in the Bangladeshi construction sector (2026) · Innovative Infrastructure Solutions · doi
The study identifies a gap in the optimization of sustainable concrete mix designs in the Bangladeshi construction sector. The research highlights the need to reduce the environmental impact of conventional concrete by partially replacing ordinary Portland cement with fly ash and ground granulated blast-furnace slag. The paper notes that durability-related properties and life-cycle assessment are beyond the scope of the present investigation.
generalstated research gapKeywords: study identifies gap optimization sustainable concrete mix designs - Performance Comparison of Crumb Rubber in Ordinary Portland Cement and Alkali-Activated Slag: A Study on Pastes and Mortars (2026) · American Journal of Civil Engineering and Constructions · doi
Future research should focus on surface modification of CR, optimization of mix design, and long-term durability performance to further enhance the applicability of rubberized cementitious mixtures, and also these findings provide a valuable framework for the development of sustainable, high-performance rubberized cementitious materials in future construction applications.
generalconclusionsevidence 5/5Keywords: future performance rubberized cementitious focus surface modification optimization design long term durability further enhance applicability - A Review On "Experimental Study on the Development of Optimum Concrete Mix Proportion using Ultrafine Materials" (2026) · Zenodo (CERN European Organization for Nuclear Research) · doi
Therefore, future research should focus on developing a comprehensive and performance-based optimum mix design methodology for ultrafine material concrete, integrating strength, durability, microstructure analysis, cost optimization, and sustainability assessment. Although significant progress has been made in this field, major research gaps exist related to lack of standardized mix design guidelines, limited multi-material combination studies, insufficient durability and shrinkage investigation, and lack of field validation.
generalconclusionsevidence 5/5Keywords: design material durability field lack future focus developing comprehensive performance based optimum methodology ultrafine concrete - Effects of Steel Fibers, a CaO-MgO Composite Expansive Agent, and Fly Ash–Slag Replacement on Early-Age Cracking and Water Penetration Resistance of Tunnel Lining Concrete (2026) · Journal of Composites Science · doi
employ factorial mixture designs combined with interaction-effect analysis to evaluate the combined performance of multi-component tunnel lining concrete - combine cracking tests with shrinkage, pore-structure, and microstructural characterization - conduct long-term permeability evaluation - perform field-scale verification of optimized tunnel lining concrete mixtures
generalfuture-work sectionevidence 5/5Keywords: employ factorial mixture designs combined interaction-effect analysis evaluate - A Review on Mechanical Performance of Concrete Containing Walnut Shells as Aggregate Replacement (2026) · Journal of Composites Science · cited 1× · doi
Further research focusing on durability, long-term behavior, and optimization strategies to enhance the practical applicability of WS-based sustainable concrete, - Investigation of the effects of different WS characteristics and particle sizes on the mechanical performance of concrete, - Development of new mix design parameters and performance requirements for WS-based concrete
generalfuture-work sectionevidence 5/5Keywords: further research focusing durability long-term behavior optimization strategies
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