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Abstract. Paving block pavement is already widely used in Indonesia. Materials made of concrete paving blocks are easy to make and easy to implement. Currently the manufacture of paving blocks SNI 03-0691-1996 refers to a method that consists of a mixture of cement, sand/gravel: water. Our research uses bamboo pieces of waste material as a substitute for gravel. Comparison of the composition of the bamboo pieces that are used to dry conditions weighing 10 kg, 20 kg and 30 kg. Based on compressive strength testing performed at the age of 7, 14 and 28 days can be known ability paving block receives compressive strength. The research using bamboo fiber material at 28 days had compressive strength 171 kg/cm 2 , 190 kg/cm 2 , and 199 kg/cm 2 . While using bamboo fiber material and fly ash at 28 days have compressive strength 231 kg / cm 2 , 176 kg/cm 2 , 252 kg/cm 2 . Test results meet the quality of type C, D and the use of bamboo waste as aggregate paving can support green infrastructure in the future.

Inspection of crack width prediction procedures proposed by various researchers indicates that each formula contains a different set of variables. A literature review also suggests that there is no general agreement among various researchers on the relative significance of different variables affecting the crack width, despite the large number of experimental work carried out during the past few decades. An analytical method is developed to determine the concrete stress distribution near flexural cracks in reinforced concrete one-way slabs and used to investigate the effects of various variables on the spacing and width of cracks. The formula is developed using a large number of curvature values calculated from the concrete and steel strains at various sections between adjacent cracks for a number of composite precast deck slabs. The present method of incorporating the tension stiffening effect is verified by comparing calculated fracture mechanic and those measured by other investigators. The curvature values at sections between adjacent cracks are calculated using an empirical formula. Development of this formula is based on the curvature values calculated using the concrete and steel strains at various sections between successive cracks, for a number of composite precast deck slabs. Using the curvature values evaluated by the proposed formula, short-term deflections were determined for a large number of flexural members and the results were compared with those measured by other investigators. This comparison indicated that the present method of incorporating the tension stiffening effect in fracture mechanic calculations is acceptable.

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