As a guest user you are not logged in or recognized by your IP address. You have
access to the Front Matter, Abstracts, Author Index, Subject Index and the full
text of Open Access publications.
In order to prepare the ultra-fine full gold tailing aggregate cementing materials, the gold tailing powders were mixed with cement under different proportions. Then the effect of sand quantity, water quantity and dosage of water-reducing agent on the compressive strength of the full tailing aggregate cementing materials was studied using response surface method in Design-Expert software. Based on the regression analysis of test results, a visual model was provided. The research results show that when the relative mass dosage of cement is 1, the amount of sand is greater than 1.1, the amount of water is greater than 0.24, and the amount of water reducing agent is 0.01. The 7d compressive strength of tailings concrete shows a significant negative linear correlation with the amount of sand and water. That implays the concrete strength decreases with the increase of the amount of sand and water. When the relative mass of cement is 1, the maximum 7d strength of concrete appears at the relative mass of sand 1.0, the amount of water is 0.22, and the amount of water reducer is 0.01. The maximum 7d compressive strength is about 75.43MPa.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.
This website uses cookies
We use cookies to provide you with the best possible experience. They also allow us to analyze user behavior in order to constantly improve the website for you. Info about the privacy policy of IOS Press.