Sumenep has a large amount of coconut shell ash waste from the briquette industry and a considerable potential for producing limestone (hydraulic lime). The development of road transportation infrastructure as a regional development in Indonesia using paving blocks has resulted in increased demand for cement. Utilization of waste and the potential of local materials must be endeavored by users, both of which have the same content as cement. The research method used an experimental method by replacing the cement with coconut shell ash waste and hydraulic lime, each of 0%, 5%, 10%, 15%, 20%. data analysis techniques using multiple linear regression method with the help of SPSS software. The results of the study with the help of SPSS software showed that the addition of variations in coconut shell ash waste and hydraulic lime did not have a simultaneous effect on the compressive strength and absorption of water. Laboratory research results show a maximum compressive strength of 18.616 Mpa and an average water absorption of 10.751% with the addition of each variation of 5% coconut shell ash waste and hydraulic lime, based on SNI -03-0691-1996 compressive strength including quality classification B, while absorption does not meet the requirements for absorption quality classification.

Glass bottles waste are generated from industrial and household activities that can’t be decomposed, if the amount is too much it will damage for the environment. In this study, glass waste will be reused as a filler in concrete especially fine aggregate, because glass bottles waste has weather resistance. The data was analyzed by using regression and classical assumption test with SPSS programme with the help of SPSS 20 for windows software. The variables used in this study were the independent variable (glass bottle waste) and the dependent variable (tensile strength). Based on the results of the analysis, it is obtained that the maximum tensile strength is at the variation of 0% and 12.5%, where at the 0% variation, the tensile strength is obtained at 44 Kg/cm, while at the 12.5% variation, the tensile strength is obtained at 40 Kg/cm. This can be seen in the results of the simple linear regression analysis using the SPSS 20 for windows program which shows that the effect of adding glass waste has a significant effect on tensile strength.