The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 25, 2017
Filed:
Jun. 01, 2012
Abdulrahman M. Alhozaimy, Riyadh, SA;
Mohd Saleh Jaafar, Serdang, MY;
Abdulaziz I. Al-negheimish, Riyadh, SA;
Jamaloddin Noorzaie, Serdang, MY;
Abdulrahman M. Alhozaimy, Riyadh, SA;
Mohd Saleh Jaafar, Serdang, MY;
Abdulaziz I. Al-Negheimish, Riyadh, SA;
Jamaloddin Noorzaie, Serdang, MY;
King Saud University, Riyadh, SA;
Abstract
A concrete product is produced by providing red dune sand having a particle size of 45 microns or less and mixing the red dune sand with hydraulic cement in a ratio of about 30% of the cement being replaced by the red dune sand. The cement and red dune sand are then mixed with fine and course aggregate, water and a superplasticizer and cast after pouring into a mold cavity. Then within 24 hours of casting, the cast article is steam cured for 12 hours under atmospheric pressure, demolded and placed in an auto clave at 100% humidity. The temperature in the auto clave is raised to 180° C. within one to two hours and maintained at that temperature for 4 to 5 hours. The temperature also increases the pressure to about 10 bars. The pressure is released to reach atmospheric pressure within 20-30 minutes and the temperature reduced gradually, so that the article can be removed.