STUDYING THE EFFECTS OF THE SUPER PLASTICIZER ON THE CONCRETE MIXES CONTAINING DIFFERERNT PORTION OF CEMENT

Laftah, Jabbar A.

	STUDYING THE EFFECTS OF THE SUPER PLASTICIZER ON THE CONCRETE MIXES CONTAINING DIFFERERNT PORTION OF CEMENT
Al-Qadisiyah Journal for Engineering Sciences
Volume 9, Issue 2, 2016, Pages 252-266 PDF (976.29 K)
Document Type: Research Paper
Author
Jabbar A. Laftah^*
Professor in Structural Engineering at Technology University, Iraq
Abstract
The included search casting twenty one concrete mixes, that proportion are (1:1.5:3), (1:2:4) and (1:3:6). Nine of them with out using plasticizer with three (w/c) (0.50, 0.57, 0.60) as showing at table (6).And twelve mixes contained a proportion of additive mixture of metal Gelenium No.(5) with four ratios of Gelenium as shown at table (5) and every mix has (w/c) (0.45:0.53:0.60). - Soft conceret of non container plastizer tested by workablity (slump test). The mex (1:1.5:3) gave best result (60mm) , least mix (1:2:4) gave (40mm), least mix(1:3:6) gave (25mm) according to reference mixture. - Soft conceret with Gelenium ratio plastizer gave best slump for Nine mixs with three (w/c) ratio (40%, 45%, 50%) And Gelenium (3%) , the best result for mix(1:1.5:3) equal (98mm),least mix (1:2:4) gave slump (85mm) , And mix (1:3:6) gave (74mm) compare with reference mixture - Compressive strength for twelve cupics with optimum Gelenium ratio. The mix (1:1.5:3) with (2%) gave (14Mpa) at early age. And (38Mpa) at finish age, least mix (1:2:4) gave (10Mpa) at early age And (28Mpa) at finish age , And mix (1:3:6) gave (6Mpa) at early age , and (20Mpa) at finish age as shown at figure(8). - Depend on ratio of mix , percentage(w/c) and zoom of plasticizer .these factors gave best result at mix(1:1.5:3) according to standard specification.
Keywords
Plasticizer; Concrete Mix; Admixture; Compressive Strength; Workability; Durability; Slump; Gelenium (5)

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