READY MIXED CONCRETE CONSTITUENT MATERIALS; PLASTICIZING CHEMICAL ADMIXTURES AND EFFECTS ON FRESH AND HARDENED PROPERTIES
| Autor: | Evren Arioz, Omer Arioz |
|---|---|
| Přispěvatelé: | HKÜ, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Arıöz, Ömer |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
beton 0211 other engineering and technologies Mühendislik 02 engineering and technology law.invention Engineering law 021105 building & construction Chemical admixture Composite material plastik Ready mixed concrete plasticizing chemical admixture flow ability kimyasal Slag General Medicine 021001 nanoscience & nanotechnology Compressive strength test Portland cement Ready mixed concrete Compressive strength Ground granulated blast-furnace slag visual_art visual_art.visual_art_medium Composition (visual arts) 0210 nano-technology basınç |
| Zdroj: | Volume: 19, Issue: 4 982-990 Eskişehir Technical University Journal of Science and Technology A-Applied Sciences and Engineering |
| ISSN: | 2667-4211 |
| Popis: | The effects of plasticizing admixtures on the properties of fresh and hardened ready mixed concrete were studied. Eight different concrete mixtures were designed by two different polycarboxylate based plasticizing admixtures, CEM III/42,5 N type Portland cement, ground granulated blast furnace slag, natural sand, crushed limestone, and water. Flow ability of the freshly mixed concretes were measured and the compressive strength tests were carried out on 150 mm cubic specimens at the ages of 7 and 28 days. It was observed that flow values increased when the amount of admixture used in the mixtures increased. The composition of the admixture affected the flow values of the mixtures significantly. Compressive strength test results revealed that the increase in amount of slag in the amount of total binding material resulted in lower 7-days strength values. Type of chemical admixtures significantly influenced the 7-days strength values. This was attributed to the different secondary effects of different plasticizing chemical admixtures. Type of chemical admixture influenced both 7-days strength and 28-days strength even the mixtures had equal amounts of ingredients and also equal water/binder ratios. This result showed that plasticizing chemical admixtures can affect both early and later age strengths of ready mixed concrete even for equal water/binder ratios. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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