Effects of Stone Cutting Powder (Al-Khamkha) on the Properties of Self-Compacting Concrete

Abstract

Most of the construction materials research now concerns on investigation of construction materials that is locally produced at a rate and cost compatible with the pace of construction. The present paper is concerned with investigation of fresh and hardened properties of self-compacting concrete (SCC) produced from local available materials in JORDAN. The produced SCC contains the local stone cut waste powder which is called Al-KHAMKHA in JORDAN with different replacement of (0%, 10%, and 25%) of fine silica aggregate; the study also investigates the effects of SP33 super plasticizer which is used by different doses (1%, 1.5% and 2%) for cement. The slump flow and the compressive strength of SCC were studied and the experimental results indicate the possibility of using Al-KHAMKHA in the production of SCC as the results showed that the compressive strength of the SCC with 10 % replacement by al-khamkha together with 1% SP33 super plasticizer was higher compared to pure SCC without al-khamkha; the results also showed that as al-khamkha content increased the slump flow decreased.

The Engineering behavior and the Properties of Phosphorit and Gypsum on the Resistance strength of Concrete

“…Six cube specimens with 50%Phosphorite wastes and 50%Gypsum (MGPC50%). While concrete, the samples were divided into five classifications according to the ratio of Phosphorite wastes and Gypsum to cement [11,12,13]. In each category, six cube specimens and four cylinders were prepared and tested.…”