PE再生 | 永續活水

城市餘脈：HDPE排水管再生公共藝術

本案以建築工程中裁切後剩餘的HDPE排水管餘料為材料起點，將原本隱藏於牆體、地坪與地下管線中的排水系統，重新轉化為可被看見、可被接近、可被使用的公共街道裝置藝術。HDPE管材原本承載城市日常的水流與循環，卻通常不被市民注意；透過回收、切割、重組與色彩轉譯，這些建築餘料不再只是廢棄物，而成為城市文化記憶的一部分。

設計將管材切片後，以連續串接的方式形成如珠鏈、波紋、拱門與管道般的造型語彙。藍、紅、綠等鮮明色彩，使原本工業性的材料產生更強烈的視覺辨識度，也呼應城市基礎設施中不同管線系統的秩序感。裝置可被觀看，也可被穿越、停留、倚靠或作為街道家具使用，讓藝術不只是遠距離欣賞的雕塑，而是能進入日常生活的公共介面。

此作品試圖把「看不見的城市系統」轉化為「可感知的城市風景」。排水管象徵流動、連接與支撐；當它從建築剩料變成街道裝置，便提出一種新的思考：城市更新不一定只來自新材料與新建設，也可以從既有資源的再利用開始。透過視覺化、家具化與藝術化的轉換，市民能重新理解廢料的價值，也看見建築材料在功能之外的美學可能。

本案不僅是材料再生，更是一種公共文化的再設計。它讓街道成為展場，讓餘料成為作品，讓城市基礎設施從背景走向前景，提供市民一個關於環境、建築、循環經濟與城市生活的開放性想像。

Urban Residual Veins: Recycled HDPE Drainage Pipes as Public Art

This project begins with leftover HDPE drainage pipes from building construction and transforms them into a public street installation. In ordinary architecture, drainage pipes are usually hidden behind walls, beneath floors, or underground. They quietly support the city’s daily operation, yet they are rarely seen or noticed by citizens. By recycling these offcuts and converting them into a visible urban object, the design gives the material a second life and invites people to reconsider the relationship between infrastructure, waste, and public culture.

The installation uses repeated pipe segments as modular units. Through cutting, polishing, coloring, and reassembling, the original pipe is transformed into a sequence of bead-like forms, arches, loops, and furniture-scale structures. The vivid blue, red, and green colors create a strong visual identity, while also suggesting the logic of urban pipeline systems. What was once a purely functional construction material becomes something playful, sculptural, and approachable.

The work is designed not only to be viewed, but also to be experienced. Citizens may walk through it, pause beside it, lean on it, or use it as part of the street environment. In this way, the boundary between public art and urban furniture becomes softer. The installation is no longer a distant object placed in the city; it becomes a small cultural interface within everyday life.

Conceptually, the project visualizes the hidden veins of the city. Drainage pipes represent flow, connection, support, and circulation. When these leftover materials are brought back into the public realm, they suggest that urban renewal does not always require new resources. It can also begin with rethinking what already exists.

By making recycled HDPE pipes visible, usable, and artistic, the project turns construction waste into a medium for civic imagination. It allows the street to become an exhibition space, the discarded material to become a cultural object, and the city’s invisible infrastructure to become part of a shared public experience.