Both lightweight and gypsum concrete, or gypcrete, are used in construction but involve unique structures, compositions, densities, applications, and installations. Lightweight concrete comes from shale, slate, and clay aggregates, while gypcrete is made of gypsum plaster, sand, and cement.
Your choice depends on your budget, priorities, and preferences. Here’s a comparison of gypsum and lightweight concrete:
What Is Lightweight Concrete?
Lightweight concrete is a building material featuring expanded clay, perlite, or shale instead of gravel, sand, or other traditional aggregates. The aggregate has a lower density than regular concrete, which results in lower compressive strength. You can also use it for many structural applications involving floors, roofs, and walls, or in projects requiring weight reduction.
- The material is used for decks and balconies if you caulk and reinforce them for stability.
- Lightweight concrete also enhances insulation due to its thermal properties and reduces the total weight of the structure.
- The construction is fire-resistant and can be used as a backfill for floors, apartment homes, hospitals, and office buildings.
- Lightweight concrete also provides an affordable option compared to regular concrete construction.
What Is Gypcrete?
Gypcrete is made from a mixture of gypsum plaster, cement, and sand. The concrete can also feature additives to enhance strength and workability. Gypsum concrete is lighter than regular concrete but denser than lightweight concrete. The material is also stronger than lightweight concrete and provides sufficient strength for various structural and non-structural applications. You can use gypcrete as a subfloor or base floor material. The construction also works well with radiant floor heating systems due to its even heat distribution.
- Gypcrete has superior thermal efficiency, insulation, and heat conduction. The material is also known for its sound attenuation and fire resistance properties.
- Its low water content reduces the risk of moisture-related flooring failures. Gypsum also prevents the early hardening of cement, resulting in longer working times and stronger, resilient constructions.
- As an underlayment or top coat flooring, the material bears the same compression strength as regular concrete despite weighing less.
How Are They Different?
Gypsum and lightweight concrete have many similarities because they’re both solid cement constructions. Lightweight concrete usually features different aggregates, while gypcrete must contain gypsum-based products. Gypcrete is more suitable for interior floors, while lightweight concrete is strong enough for structural applications.
Find Quality Gypsum Concrete Today
Gypcrete has many advantages, making it a suitable choice for residential and commercial concrete constructions. You can use the material to create soundproof subfloors for multistory buildings and recording studios. Gypcrete also works with various flooring systems, including hardwood, vinyl, and tile. Speak to a reputable underlayment provider today to learn more about gypsum concrete.
