Technology: general issues 2 Aggregates 1 Coarse aggregates 1 Compressive strength 1 Concrete aggregates 1 Controlled Low Strength Materials (CLSM) 1 Controlled low strength materials 1 Controlled low-strength material 1 Fine aggregates 1 High-strength 1 Hydrated lime 1 Mass percentage 1 Maximum strength 1 Mixtures 1 Paper sludge ash 1 Paper waste sludge 1 Portland cement 1 Recycle Concrete Aggregate (RCA) 1 Recycled coarse aggregate 1 Recycled concrete aggregates 1 Recycling 1 Strength assessment 1 Strength development 1 Tankers (ships) 1 Uniform mixtures 1 Waste Paper Sludge Ash (WPSA) 1 Waste paper 1 compressive strength 1