Concrete

Decisive attributes

The attributes that most determine how this class behaves and how it is experienced. No values are shown, because a value belongs to a product and not to a class. Two products of the same material can differ from each other by more than the material differs from its neighbours.

• Thermal effusivity
• Mass per unit area
• Absorption coefficient by octave band
• Light reflectance value

Typical application

Floors. Walls. Ceilings. Soffits.

Evidence

2 records in the research corpus reach this class. Each carries its own evidence strength and translation distance, shown below. Read both: a finding can be strong and still be several inferential steps from a specification.

• ND-0057 · 2007 · Behavioral experiment

  Moderate-highDirect built environment

  The Influence of Ceiling Height: The Effect of Priming on the Type of Processing That People Use

  Joan Meyers-Levy & Rui Zhu. Journal of Consumer Research

  Higher ceilings were associated with freedom-related concepts and more relational or abstract processing; lower ceilings with more confined concepts and item-specific processing.

• ND-0077 · 2008 · Systematic review

  HighDirect built environment

  A Review of the Research Literature on Evidence-Based Healthcare Design

  Ulrich et al. HERD

  The review found design-relevant evidence across infection control, acoustics, nature/daylight, ergonomics, room type and layout, while quality varied by topic.

Outcomes it could bear on

Outcomes whose material levers overlap this class. This is a structural relationship in the ontology, not a finding: it says the property is relevant to the outcome, not that this material produces it.

• Sleep onset and continuityvia Absorption coefficient by octave band, Light reflectance value, Thermal effusivity
• Acoustic privacyvia Absorption coefficient by octave band, Mass per unit area
• Autonomic downregulationvia Thermal effusivity
• Circadian light deliveryvia Light reflectance value
• Glare and visual comfortvia Light reflectance value
• Perceived spaciousnessvia Light reflectance value
• Perceived warmth of a spacevia Thermal effusivity
• Recovery in care settingsvia Absorption coefficient by octave band
• Speech intelligibilityvia Absorption coefficient by octave band
• Thermal comfort at contactvia Thermal effusivity