Evaluation of the effect of tricalcium aluminate content on the severity of sulfate attack in Portland cement and Portland limestone cement mortars

2015 ◽  
Vol 56 ◽  
pp. 115-120 ◽  
Author(s):  
Ashlee M. Hossack ◽  
Michael D.A. Thomas
Keyword(s):  
Portland Cement ◽  
Sulfate Attack ◽  
Tricalcium Aluminate ◽  
Portland Limestone Cement ◽  
Cement Mortars ◽  
Limestone Cement

Long term durability of Portland-limestone cement mortars exposed to magnesium sulfate attack

2003 ◽  
Vol 25 (8) ◽  
pp. 947-954 ◽  
Author(s):  
S.M. Torres ◽  
J.H. Sharp ◽  
R.N. Swamy ◽  
C.J. Lynsdale ◽  
S.A. Huntley
Keyword(s):  
Magnesium Sulfate ◽  
Sulfate Attack ◽  
Portland Limestone Cement ◽  
Cement Mortars ◽  
Limestone Cement

The Effect of Chlorides on the Thaumasite Form of Sulfate Attack in Limestone Cement Concrete

2010 ◽  
Vol 636-637 ◽  
pp. 1349-1354
Author(s):  
K. Sotiriadis ◽  
E. Nikolopoulou ◽  
Sotiris Tsivilis
Keyword(s):  
Portland Cement ◽  
Chloride Content ◽  
Concrete Specimen ◽  
Visual Assessment ◽  
Xrd Analysis ◽  
Sulfate Attack ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Portland Limestone Cement ◽  
Limestone Cement

In this paper the effect of chlorides on the thaumasite form of sulfate attack in limestone cement concrete is studied. Concrete specimens made from ordinary Portland cement and two Portland limestone cements (limestone content 15% and 35% respectively) were prepared. After 28 days of curing the specimens were immersed in six solutions of various sulfate and chloride content and stored at 5oC. Visual assessment of the specimens, mass measurements and compressive strength tests took place for a period of 24 months. XRD method was used to identify thaumasite in the deteriorated parts of the specimens. All measurements showed that Portland cement concrete exhibits a lower degree of deterioration than Portland limestone cement concrete. Specimen disintegration was more severe, the higher the limestone contents of the cements and the higher the sulfate content of the corrosive storage solutions. Chlorides play an inhibitory role, delaying the deterioration of the concrete specimens. XRD analysis showed the presence of thaumasite at the deteriorated parts of the specimens after nine months of curing.

Long term behavior of Portland limestone cement mortars exposed to magnesium sulfate attack

2009 ◽  
Vol 31 (9) ◽  
pp. 628-636 ◽  
Author(s):  
A. Skaropoulou ◽  
S. Tsivilis ◽  
G. Kakali ◽  
J.H. Sharp ◽  
R.N. Swamy
Keyword(s):  
Magnesium Sulfate ◽  
Sulfate Attack ◽  
Portland Limestone Cement ◽  
Cement Mortars ◽  
Limestone Cement ◽  
Long Term Behavior

Effects of fly ash on Portland limestone cement under sulfate attack at low temperature

2020 ◽  
Vol 72 (3) ◽  
pp. 134-148 ◽  
Author(s):  
Meng Wu ◽  
Yunsheng Zhang ◽  
Yongsheng Ji ◽  
Guojian Liu ◽  
Wei She ◽  
...  
Keyword(s):  
Fly Ash ◽  
Low Temperature ◽  
Sulfate Attack ◽  
Portland Limestone Cement ◽  
Limestone Cement

scholarly journals Expansion Behavior of Portland Cement Mortars under Sulfate Attack

2007 ◽  
Vol 353-358 ◽  
pp. 2577-2580
Author(s):  
Jian Kang Chen ◽  
Min Qiang Jiang ◽  
Ding Yi Yang
Keyword(s):  
Portland Cement ◽  
Sulfate Attack ◽  
Expansion Behavior ◽  
Cement Mortars

scholarly journals Analysis of Chemical Composition of Portland Cement in Ghana: A Key to Understand the Behavior of Cement

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Mark Bediako ◽  
Eric Opoku Amankwah
Keyword(s):  
Chemical Composition ◽  
Portland Cement ◽  
Ordinary Portland Cement ◽  
Chemical Compositions ◽  
Test Results ◽  
Brand Name ◽  
X Ray ◽  
Portland Limestone Cement ◽  
Limestone Cement ◽  
Construction Works

The performance of Portland cement in concrete or mortar formation is very well influenced by chemical compositions among other factors. Many engineers usually have little information on the chemical compositions of cement in making decisions for the choice of commercially available Portland cement in Ghana. This work analyzed five different brands of Portland cement in Ghana, namely, Ghacem ordinary Portland cement (OPC) and Portland limestone cement (PLC), CSIR-BRRI Pozzomix, Dangote OPC, and Diamond PLC. The chemical compositions were analyzed with X-Ray Fluorescence (XRF) spectrometer. Student’st-test was used to test the significance of the variation in chemical composition between standard literature values and each of the commercial cement brands. Analysis of variance (ANOVA) was also used to establish the extent of variations between chemical compositions and brand name of the all commercial Portland cement brands. Student’st-test results showed that there were no significant differences between standard chemical composition values and that of commercial Portland cement. The ANOVA results also indicated that each brand of commercial Portland cement varies in terms of chemical composition; however, the specific brands of cement had no significant differences. The study recommended that using any brand of cement in Ghana was good for any construction works be it concrete or mortar formation.

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