Addition of Gravel in the Manufacture of Paving Block with Water Absorption Capability

Abstract

Paving block is one of elements that normally used in the pavement. Paving block can be easily made and apply to the road, parking area and yard. Innovations for paving block are carried out according to their intended application. One of them is paving block with water absorption capability to overcome the problem of flooding in Indonesia, especially in urban areas and densely populated during the rainy season. The production of paving block must follow the methods and materials as required by SNI 03-0691-1996, especially in the preparation of mixture, cement: sand/gravel: water. Paving block was designed to absorb water. The use of the materials is adjusted to achieve the quality of paving block. Specimens of sand paving block (PN) were prepared using sand (69.5%) + cement (30%) + water (0.05%). Meanwhile, specimens of gravel paving block (PK) were prepared using gravel (59.5%) + sand (10%) + cement (30%) + water (0.5%). The results indicate that gravel paving block able to absorb water within 4 seconds/litre/cm2 and the compressive strength meet the requirement of SNI 03-0691-1996.