Analysis of workability, mechanical strength and durability by the FT-IR method of concrete based on silica-limestone sand preserved in aggressive environmentsAbdelkader Hima، Tarek Djedid، Mohammed Mani، Abdelhamid GuettalaFrattura ed Integrità Strutturaleالمجلّد 16، (59)، الصفحات 566-5792021مقال وصول مفتوح 5