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文章对济南泰安等地自１９９０年至１９９３年间建的１２个菱镁大棚拱杆、盖板、梁柱的耐久性、韧性及构件的强度问题进行重点考察，结果表明，经２个冬天的使用。菱镁拱杆及主柱表面光滑坚硬、无粉化起砂现象，表面莫氏硬度达到３级；盖板经４年使用，表面仍完好无损，使用５年的梁柱，其内部增强竹筋仍很新鲜，无损坏现象，构件表面坚硬，无粉化、起砂、剥皮等迹象，表面莫氏硬度仍达３级，平均回弹值达２４，无变形下弯现象，柱角坚硬。
This article focuses on the durability, toughness, and strength of components of 12 magnesite canopies, decks, and columns built between 1990 and 1993 in Taian, Jinan and other places. The results show that the use of two winters . The surface of the magnesite arch rod and the main column is smooth, hard and free from powdering and sanding, and the surface Mohs hardness is up to level 3; the cover plate is used after 4 years, the surface is still intact, and the beam columns with 5 years are used, and the internal reinforcing bamboo bars are used. Still very fresh, no damage, hard surface of components, no signs of chalking, sanding, peeling, etc. The surface Mohs hardness is still up to 3 levels, the average rebound value of 24, no deformation under the bending phenomenon, hard corners.