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Sustainable Resource Utilization of Pisha Sandstone in China: A Review from Erosion Control to Preparation of Low-Carbon Geopolymer Cementitious Materials and Amelioration of Degraded Soils

中国におけるピサ砂岩の持続可能な資源利用：侵食対策から低炭素ジオポリマーセメント材料の調製と劣化土壌改良までのレビュー (AI 翻訳)

Qiang Zhang, Xiaoli Li, Huijun Xue, Demeng Lyu

Sustainability📚 査読済 / ジャーナル2026-06-26#sustainable_construction_materialsOrigin: CN対象セクター: construction
DOI: 10.3390/su18136522
原典: https://doi.org/10.3390/su18136522

🤖 gxceed AI 要約

日本語

本レビューは、中国黄河流域に広がるピサ砂岩（PS）の持続可能な資源利用について概説する。PSは侵食されやすいが、アルミノケイ酸塩に富み、低炭素ジオポリマー材料や土壌改良材として活用できる。侵食メカニズムを解明し、対策技術と資源化の最新研究を整理した。

English

This review examines the sustainable utilization of Pisha Sandstone (PS) in China's Yellow River region. Despite its poor erosion resistance, PS is rich in aluminosilicates and can serve as a low-carbon geopolymer precursor and soil amendment. The paper clarifies erosion mechanisms and summarizes control measures and resource utilization progress.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本ではピサ砂岩に相当する材料は限られるが、低炭素ジオポリマー技術は廃棄物由来のセメント代替として有効である。特に建設分野でのGX推進に示唆を与える。

In the global GX context

This review contributes to global knowledge on low-carbon geopolymer cements from waste materials, relevant to construction sector decarbonization and circular economy strategies beyond China.

👥 読者別の含意

🔬研究者:Researchers in geopolymer materials and sustainable construction can gain insights into using erosion-prone soft rock as a cement precursor.

🏢実務担当者:Construction material companies exploring low-carbon alternatives may find the geopolymer approach applicable to local waste streams.

📄 Abstract（原文）

Pisha sandstone (PS) is a weakly cemented soft rock widely distributed in the middle reaches of the Yellow River, China. PS disintegrates rapidly upon contact with water and has poor erosion resistance, making it a major source of coarse sediment in the Yellow River. However, PS is rich in aluminosilicate minerals and clay fractions, offering great potential as a sustainable precursor for geopolymer cementitious materials and as an amendment for degraded soils. The sustainable resource utilization of PS provides a new pathway for coordinated ecological and economic development in the PS areas. This paper first reviews the mineralogical and chemical characteristics of PS, clarifying that low diagenetic degree and high montmorillonite content cause poor erosion resistance, and that compound erosion from freeze–thaw, water, wind, and gravity erosion creates a superimposed amplification effect, which is the primary driver of severe soil erosion. Subsequently, three major control measures for soil erosion in the PS areas are summarized, namely biological measures using sea-buckthorn (Hippophae rhamnoides), chemical solidification, and microbially induced calcium carbonate precipitation (MICP), with analyses of their mechanisms, efficiency, and limitations. Furthermore, the research progress on the sustainable resource utilization of PS in the preparation of geopolymer cementitious materials and the amelioration of degraded soils is elaborated. Finally, future research directions are discussed to support the control of soil erosion and the green, sustainable resource utilization of PS.

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