Abstract: A wall panel comprises a first metallic skin, a second metallic skin, and an insulating layer interposed therebetween. The first and second metallic skins are attached to insulating layer with a water-based adhesive. In one embodiment, the water-based adhesive is a water dispersed, high solid, activated adhesive. In another embodiment, the water based adhesive is a one hundred percent waterborne adhesive. In another embodiment, the water-based adhesive is a dispersion of an acrylic resin and synthetic rubber in water.

Abstract: A controlled release formulation for a cement-based composition can be produced by intercalating an admixture (e.g. an accelerator, a set retarder, a superplasticizer) for the cement-based composition into a layered inorganic material (e.g. a layered double hydroxide (LDH)). A cement-based composition containing a cement-based material (e.g. cement, mortar or concrete) and such a controlled release formulation has better workability, especially in respect of slump-loss characteristics. With such a formulation release of an admixture in a cement-based composition may be controlled.