: Should fall between 70 and 120 lb/ft³ (1,120 and 1,920 kg/m³) .
3.1 General The design of a concrete structure should take into account the expected environmental and other factors that can affect its durability.
The performance of SLWC relies entirely on the quality of its porous aggregates. ACI 213R-14 categorizes these materials and details their production. Types of Lightweight Aggregates aci 213r-14 pdf
The guide details the types of aggregates used to achieve low density. These are typically manufactured using rotary kilns, sintering machines, or traveling grates. Common materials include: Expanded shale Expanded clay Expanded slate Sintered fly ash
Raw materials are heated to approximately 2000°F (1100°C), causing them to expand or "bloat" due to internal gas generation. : Should fall between 70 and 120 lb/ft³
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The guide explains the modification factor ( ACI 213R-14 categorizes these materials and details their
The primary advantage discussed in the guide is the reduction of the of a structure. Using SLWC can reduce the weight of a building by 20% to 30%, leading to: Smaller foundation requirements. Reduced seismic forces. Increased spans for bridges and floor slabs.