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製品画像：メーカー（公式）。
SFRM · concealed steel
Low-density cementitious spray
A light cementitious spray for steel hidden above ceilings and inside walls – fast to apply over large areas, ratings up to about four hours.
- Low
- Density class
- up to ≈ 4 h
- Typical rating
- Interior, concealed
- Exposure
World Steel が鉄骨建築と一括で、または単体で供給 – 一つの注文、一つの出荷、一つのパートナー。
概要
Low-density cementitious sprayについて
Sprayed directly onto clean, primed or bare steel as specified, in one or more passes.
Thickness set by the member, rating and listed design – measured to ASTM E605.
Covered by ceilings or linings – not for exposed, wet or high-traffic areas.
主なメリット
- Lowest cost per m² for long ratings
- Fast application over large areas
- Covers complex shapes and connections
- Also protects metal decks
World Steel · 外装材ハブ
鉄骨建築におけるLow-density cementitious sprayの活用
World Steel coordinates sprayed fire protection with the steel: compatible primers, clean surfaces and member-by-member thickness schedules from the fire design.
- 01構造と一体で仕様決定 – 厚さ、密度、表面材を屋根・外壁・耐火設計に合わせます。
- 02数量は鉄骨、母屋、外装材と同じ 3D モデルから算出。
- 03鉄骨パッケージとともに梱包・出荷 – 現場への納入スケジュールは一つです。
用途
Low-density cementitious sprayの用途
- Concealed beams and columns in offices and hotels
- Steel and metal decks above ceilings
- High-rise steel frames
技術データ
Low-density cementitious spray – 技術特性
Typical properties
| 特性 | 単位 | 値 |
|---|---|---|
| Density | kg/m³ | low – typically ≈ 240 – 350 |
| Typical rating range | h | 1 – 4 |
| Test standards | — | ASTM E605 (thickness, density) · ASTM E736 (cohesion / adhesion) · UL 263 · EN 13381-4 |
この市場向けにメーカーが公表している値です。ご注文前に必ず最新のデータシートと、プロジェクトに必要な認定をご確認ください。
Sprayed fire-resistive materials
関連製品
SFRM · gypsum-basedGypsum-based sprayed fireproofing製品を見る →SFRM · exposed and industrialMedium- and high-density cementitious spray製品を見る →SFRM · medium densityMedium-density cementitious spray製品を見る →SFRM · lightweightVermiculite / perlite spray製品を見る →← Cementitious and mineral spraysSprayed Fire-Resistive Materials (SFRM) →
FAQ
よくある質問
What thickness of low-density cementitious spray do I need?
It depends on the member size (section factor), the critical temperature and the required fire rating – the fire engineer or the manufacturer's tested data gives a thickness for each member.
Does World Steel supply branded products?
Yes – we supply the brand and listed system your specification or authority requires. This page describes the product type.