Tablet containing builders

A tablet composition containing builders consisting essentially of 2% to 80% by weight of a mixture of X-ray-amorphous silicates and crystalline or partly crystalline layer-form sodium silicates corresponding to the formula Na.sub.2 Si.sub.x O.sub.2x+1.yH.sub.2 O wherein x is a number of 1.9 to 4 and y is a number of 0 to 20 and 5% to 80% by weight of water-containing zeolite or phosphate, with the proviso that said tablet composition only contains water in a quantity such that the maximum theoretical water-binding capacity of the components of said composition is not exceeded, and said crystalline layer-form sodium silicates and X-ray-amorphous silicates are present in a ratio by weight of 10:1 to 1:10.