scholarly journals Effects of Pulverized Burnt Clay Waste Fineness on the Compressive Strength and Durability Properties of Blended Cement Concrete

2018 ◽  
Vol 22 (2) ◽  
pp. 83-99
Author(s):  
Emmanuel Onaivi Ajayi ◽  
Adewumi John Babafemi
Keyword(s):  
Compressive Strength ◽  
Blended Cement ◽  
Cement Concrete ◽  
Durability Properties ◽  
Burnt Clay ◽  
Strength And Durability

scholarly journals Compressive strength and durability properties of pozzolan obtained from co-fired clay and rice husk

2020 ◽  
Vol 7 (1) ◽  
pp. 1811453
Author(s):  
Mark Bediako ◽  
Albert A. Adjaottor ◽  
Simon K.Y Gawu ◽  
Eric Opoku Amankwah
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Durability Properties ◽  
Strength And Durability

Influence of Plasticizer on Properties of Blended Cement Concrete

2015 ◽  
Vol 824 ◽  
pp. 61-64
Author(s):  
Kirill Polozhiy ◽  
Jamal Akhter Siddique ◽  
Pavel Reiterman
Keyword(s):  
Compressive Strength ◽  
Portland Cement ◽  
Blended Cement ◽  
Cement Concrete ◽  
Slag Cement ◽  
Red Clay ◽  
Clay Ceramics ◽  
Portland Slag Cement ◽  
Partial Activity

In this article Portland-slag cement was step by step replaced with pozzolana (fine red-clay ceramics) in concrete. This is first step of research that is why the only measured characteristics were consistency of mixtures and compressive strength. There were designed four mixtures with increasing replacement of Portland cement by 10 % each (CR, C1, C2, C3) where complete activity of pozzolana was assumed. Mixtures C4, C5 and C6 were designed with respect to presumed just partial activity of the used pozzolana (set as 40 %). The water/cement coefficient was decided to be taken according to the consistence of the mortar.

Influence of Particle Size Distribution of Fly Ash on Compressive Strength and Durability of Portland Cement Concrete

2011 ◽  
Vol 685 ◽  
pp. 211-215
Author(s):  
Jian Ping Zhu ◽  
Qi Lei Guo ◽  
Dong Xu Li ◽  
Cun Jun Li
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Power Plants ◽  
Reference Sample ◽  
Chloride Penetration ◽  
Portland Cement Concrete ◽  
Cement Concrete ◽  
Strength And Durability ◽  
Different Content ◽  
Better Than

The Present Research Investigates the Compressive and Durable Properties of Concretes with Fly Ash (FA), a by-Product of Coal-Fired Power Plants. for this Purpose, a Reference Sample and Twenty-one Concretes Containing FA Were Tested. the FA Was Sieved to 200, 300, and 400 Mesh. then FA Was Mixed into Concrete with Different Content. Compressive Strength at 7 and 28 Days, and Chloride Penetration Properties Were Measured. it Is Concluded that FA Can Be Used in the Production of Concrete. in Addition, the FA Concretes Present Satisfactory Physical Properties. when Proper Amount of FA Were Added the Concrete Properties Can Be Better than the Blank one.

scholarly journals Experimental Studies on Rheological and Durability Properties of Self Compacting Concrete by Using Quatenary Blending

10.29007/81v5 ◽  
2018 ◽  
Author(s):  
Ashika Shah ◽  
Indrajit Patel ◽  
Jagruti Shah ◽  
Gaurav Gohil
Keyword(s):  
Compressive Strength ◽  
Experimental Studies ◽  
Cementitious Materials ◽  
Supplementary Cementitious Materials ◽  
Self Compacting Concrete ◽  
Durability Properties ◽  
Granulated Blast Furnace Slag ◽  
Strength And Durability ◽  
Primary Contribution ◽  
Furnace Slag

In the production of Self Compacting concrete (SCC), the use of quaternary blend of supplementary cementitious materials (SCM’s) has not found enough applications. For this purpose, an effort has been done to present a mix design for M60 grade and M80 grade SCC with quaternary blending of fly ash(FA), ground granulated blast furnace slag (GGBS), silica fume (SF) in accordance with EFNARC guidelines. Findings: In this study, cement has been replaced with SCM’s from 30% to 50%. Fresh properties of concrete were tested for slump flow, T50 test and U box. The hardened properties of concrete were tested for compressive strength and durability. The tests were performed for 7, 28, 56 and 91 days. The results indicate that the use of quaternary blend has improved the workability, compressive strength and durability properties of specimens than the control specimen. Application: The primary contribution is to fill the congestedreinforcement and increase the durability and life span of the structure.

Strength of Concrete Containing Rice Husk Ash Subjected to Sodium Sulfate Solution via Wetting and Drying Cyclic

2014 ◽  
Vol 534 ◽  
pp. 3-8 ◽  
Author(s):  
Che Wan Che Norazman ◽  
Ramadhansyah Putra Jaya ◽  
Sri Jayanti Dewi ◽  
Badorul Hisham Abu Bakar ◽  
M.A. Fadzil
Keyword(s):  
Compressive Strength ◽  
Rice Husk ◽  
Sodium Sulfate ◽  
Rice Husk Ash ◽  
Blended Cement ◽  
Sulfate Solution ◽  
Target Strength ◽  
Type I ◽  
Cement Concrete ◽  
Cement Replacement

The influences of different replacement levels of rice husk ash (RHA) blended cement concrete subjected to 5% Na2SO4 solution via wetting-drying cycles was evaluated in this study. RHA was used as a Portland cement Type I replacement at the levels of 0%, 10%, 20, 30%, and 40% by weight of binder. The water-to-binder ratio was 0.49 to produce concrete having target strength of 40 MPa at 28 days. The performance of RHA blended cement concrete on compressive strength, reduction in strength and loss of weight was monitored for up to 6 months. The results of the compressive strength test have been shown that use of RHA in blended cement has a significant influence on sulfate concentration. When increasing the replacement level of RHA, the strength of concrete also increases in comparison to OPC concrete (except RHA40) even exposed to 5% Na2SO4 solution. On the other hand, the reduction in strength and weight loss of specimens increased with increase in the exposure time. Generally, it can be said that the incorporation of rice husk ash as cement replacement significantly improved the resistance to sulfate penetration of concrete. Finally, RHA cement replacement in concrete mixed provided better resistance to sodium sulfate attack up to 6-month exposure.

Utilization of kimberlite tailings as aggregates in concrete – strength and selected durability properties

MRS Advances ◽  
2020 ◽  
Vol 5 (25) ◽  
pp. 1259-1266
Author(s):  
Mike Otieno ◽  
Esina Ndoro
Keyword(s):  
Compressive Strength ◽  
Water Demand ◽  
Concrete Strength ◽  
High Water ◽  
Negative Effects ◽  
Coarse Aggregates ◽  
Durability Properties ◽  
Mix Proportioning ◽  
Water Sorptivity ◽  
Strength And Durability

AbstractThe feasibility of using kimberlite tailings as aggregates in concrete was assessed. Compressive strength and selected durability tests were carried out on concretes made using various replacement levels (0, 40, 60 and 100%) fine and/or coarse blended crushed andesite and kimberlite tailings as aggregates. A w/b ratio of 0.50 and a CEM I 52.5R were used. The results show that the kimberlite tailings as aggregates have a relatively high water demand which was manifested as a reduction in workability of the fresh concretes with kimberlite tailings as a proportion of either fine and/or coarse aggregates. The results also showed that the use of the kimberlite tailings as a proportion of either fine or coarse aggregates in concrete resulted in a decrease in both compressive strength and durability properties viz water sorptivity and oxygen permeability. This was partly attributed to the low workability of the concretes which is known to limit the degree of compaction of fresh concrete. It is envisaged that careful concrete mix proportioning including the use of admixtures and pre-wetting of the aggregates can be used to offset the negative effects of high water demand of the kimberlite aggregates.

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