Nghiên cứu xác định mối quan hệ giữa cường độ nén và mô đun đàn hồi của bê tông sử dụng phụ gia khoáng tro trấu ứng dụng thi công các công trình thủy lợi

Abstract

Using rice husk ash mineral admixture to replace the Porland cement binder by 15%, combined with a reasonable amount of superplasticizer to manufacture concrete with compressive strength of 30 to 60 (MPa), The concrete is designed with good workability, high compressive strength, high elastic modulus and high waterproof grade, meeting the technical requirements for Hydraulic constructions. Experiment to determine the compressive strength and elastic modulus of engineered concrete marks. Determining the relationship between the elastic modulus and compressive strength of concrete, the experimental formula helps to predict the elastic modulus through compressive strength, reducing the cost of testing the elastic modulus of concrete.