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层住宅探索了一种新的混凝土铸造方式：模仿地质构造。混凝土由水泥、水以及骨料构成。水泥需要与水混合来形成泥浆，加入骨料后粘度则会增强。大小不一的骨料被泥浆包裹和填充，最终变得十分坚硬。该项目的起因便是对混凝土的成分、铸造过程以及成分变化所带来的不同效果的好奇心理。

Stratum House seeks a new way of concrete casting method simulating a geologic formation. Concrete works in a combination of cement, water and aggregate. Cement is mixed with water to form a paste, and its properties are strengthened together with aggregates. These pastes wrap and fill aggregates of various sizes and become hardened. The project started with a curiosity of concrete composition, its casting process, and reaction on the results from testing the changes of its constituents.

▼住宅鸟瞰，bird eye’s view

项目中应用了三种控制因素：水灰比、不同的骨料以及不同的颜色。首先是根据坍落度来调整混凝土的形状。在水分占比升高时，坍落度也同时上升。混凝土会形成接近于水平的形状。在坍落度降低时，便能够形成有坡度的形状。然后是根据骨料从细致到粗糙的程度来改变裸露混凝土表面的不同肌理。最后则是改变表面的颜色。通过同时控制形状、肌理和颜色这三个变量，建筑师每天在场地中铸造出质地不一的混凝土结构。这令混凝土随着时间的差异显出细致而均匀的分层。

Three constraints are applied; water-cement ratio, use of diverse aggregates and different amount of pigment. The change of concrete shape according to the slump value is the first. When the water ratio is increased, the slump value is increased. The concrete forms a shape close to the horizontal. On the other case, the slump value is reduced and the mound is formed with a mass. The second is the variety of texture on exposed concrete surface depending on the ratio of fine to coarse aggregate. The last is the color changes of the surface. With the combinations of these three variables; shape, texture and color, the concrete of each different quality is cast on-site everyday. It allows to have delicately designed divisions of stacked concrete layers showing time differences.

▼住宅外观，external view

▼两栋体量相互垂直，two houses sit on perpendicular with each other

▼三个家庭共享的庭院，the front courtyard shared by three families

▼口袋空间，pocket terrace

▼对混凝土变量的调控形成表面细致的分层，the delicately designed divisions of stacked concrete layers

岩层住宅包含两栋分离的体量，供三个家庭使用。两栋体量相互垂直，共享前后两个用于社交和用餐的庭院。室内平面规模不大但具有很强的功能性。客厅朝向南面和东面，使采光和视野最大化。厨房和其它房间通过楼梯与客厅相连。两栋建筑在二层分别拥有一个露台，用于私人的家庭活动。每层的室外空间使住宅与自然形成对话。

Stratum House consists of two separate buildings for three families. Two houses sit on perpendicular to share a front and back yard for social gardens and dining. Unit plans are small yet functionally figured. Living rooms are placed towards South and East for sun exposure and maximized view. Kitchens and rooms are connected to the living room with a stair. On the second floor two buildings have individual terraces for private family activities. The buildings outdoor spaces on each level create a dialogue among sequences penetrating inside and outside of the building into nature.

▼客厅朝向南面和东面，living rooms are placed towards South and East

▼厨房和楼梯间，kitchen and stair

▼模型（粉色表示保温层），insulation model

▼混凝土浇筑样本，concrete cast samples

▼混凝土变量控制示意，diagram

▼混凝土浇筑时间表，concrete cast schedule

▼场地平面图，site plan

▼一层平面图，ground floor plan

▼二层平面图，first floor plan

▼剖面图A，section A

▼剖面图B，section B

Architect: stpmj
Location: Icheon, Kyunggi, Korea
Program: Multi-Family Residential
Site Area: 975 sm
Gross Area: 208.7 sm
Structural Engineering: Centum Engineering
Construction: ON Architecture
Client: Private
Completed Year: 2017 / Jun.
Photograph: Song Yousub

Concrete Pigment: Wooshin
Window: Inoutic
Floor: Eagon

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