أعضاء هيئة التدريس - جامعة بنها
“Preconditioning In Situ Concrete for Permeation Testing”, 5th International Colloquium on Concrete in Developing Countries, Cairo, January 1994, pp. 1168-1180
5th International Colloquium on Concrete in Developing Countries • 1994
معلومات البحث
المؤلفون
Shaaban, I. G., Elsayad, H. I.
الكلمات المفتاحية
Vacuum technique; preconditioning; CAT; Figg air; ISAT, permeation indices
المجلة العلمية
5th International Colloquium on Concrete in Developing Countries
الناشر
Egyptian Society of Engineers
المجلد
January 1994
العدد
Not Available
الصفحات
pp. 1168-1180
publication.type
Local
رابط البحث
Not Available
المواد المرفقة
Not Available
الملخص
This paper investigates the application of a vacuum techinque for preconditioning concrete in situ prior to permeation tests. Cover concrete absorption test (CAT) and Figg Air permeation index test (API) were applied after vacuum drying of concrete. the application of Vacuum using ISAT cap did not lead to satisfactory of the results with these tests. However, direct application of vacuum to CAT and API heads prior to testing resulted in improvement of reproducibilty of the permeation indices obtained from these tests.