Inovasi Material Konstruksi Berwawasan Lingkungan
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Abstract
This article is a concise adaptation of the academic book Inovasi Material Konstruksi Berwawasan Lingkungan. It is motivated by the construction sector’s high greenhouse gas emissions, driven largely by ordinary Portland cement (OPC), which makes low-carbon material innovation an urgent priority.
The study applies a structured literature synthesis covering LC3 and other low-clinker cements, alkali-activated materials (AAM)/geopolymers, CO₂ mineralisation in cementitious systems, circular materials based on recycled aggregates and industrial residues, and engineered timber (e.g., CLT). The analysis evaluates environmental impacts, performance and durability, and adoption barriers related to standards, material quality, and transparent LCA/EPD verification.
The findings indicate that LC3 and modern blended cements are the most deployment-ready options, with an estimated potential to reduce emissions by approximately 30–40% compared with OPC. AAMs and CO₂ mineralisation may deliver greater reductions, but require stronger long-term durability evidence, clearer standardisation pathways, and robust verification; circular materials and CLT are effective when strict quality control and moisture–fire performance requirements are met.
In conclusion, near-term decarbonisation should prioritise scaling LC3/low-clinker solutions and optimised mix design under performance-based specifications. Recommendations include strengthening QA/QC, green procurement, and performance-based regulation; the implications are the need for standardisation, field validation, consistent LCA/EPD reporting, and resilient low-carbon supply chains.
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