Improving Some Mechanical Properties of Concrete by Using Hyper-Plasticizer (HP-580) and Steel Fibers
الباحث الأول:
تغريد عبد المهدي موسى
الباحثين الآخرين:
ايام جبار جهاد
المجلة:
Forum for Engineering , Applied Sciences and Technology(FEAST)
تاريخ النشر:
None
مختصر البحث:
this research aims to study the effects of high performance superplasticizer or hyper superplasticizer on mechanical properties of concrete include compressive , tensile and flexural strength. Superplasticizers in general are a water reducer admixtu…
this research aims to study the effects of high performance superplasticizer or hyper superplasticizer on mechanical properties of concrete include compressive , tensile and flexural strength. Superplasticizers in general are a water reducer admixtures that give concrete high workability and higher strength , but the use of superplasticizers must done with care ,because higher dosages ratio lead to segregation and lower ratios not have significant effects ,so for these reasons this research include the use of different dosages of HP and studying the ratios effect on mechanical properties and taking the optimum ratio of HP that use with steel fibers mixes .study show 1liter for each 100 kg cement leads to give optimum mechanical properties of concrete . Steel fibers increase slightly compressive strength but flexural strength is highly increased by adding fibers , mixes with both HP super plasticizer and steel fibers give best results . compressive strength increased from 34.6MPa for reference mixes to 49.90 MPa for mixes with 2% steel fibers and HP with 1 liter for each 100 kg cement . flexural strength increase also from 2.3 to 13.28 MPa by using both steel fiber and HP-superplasticizer.
