Are there any good design resources on masonary wall design? Specifically, I was considering an above-ground, open-to-sky, rectangular tank storing approx. 25 m3 of water in it. Is it possible / economical to build such a tank out of masonary alone or does an RCC construction become economical above a certain size? Is there a hybrid design possible with reinforced concrete columns with masonary wall sections spanning the area between vertical columns? PS. Note that the final design will be done and approved by a certified civil engineer but I only wanted a preliminary design estimate at the moment for costing & initial design purposes.