scholarly journals Experimental Research on The Effect of Silica Fume on Tensile Basic Creep of Early-age Concrete

2015 ◽  
Vol 9 (1) ◽  
pp. 997-1001
Author(s):  
Wang Xinjie ◽  
Zhu Pinghua ◽  
Xia Qun
Keyword(s):  
Silica Fume ◽  
Experimental Research ◽  
Creep Behavior ◽  
Development Rate ◽  
Tensile Creep ◽  
Basic Creep ◽  
Early Age ◽  
Development Characteristic ◽  
Early Age Concrete ◽  
Cementing Material

The tensile creep behavior is extremely important in crack prediction and stress analysis of concrete. The main objective is investigating the effects of the silica fume on the tensile basic creep of early-aged concrete. The effect of silica fume on tensile creep was studied using lever-type tensile creep tester. Silica fume amount by weight of total cementing material was 0%, 5%, 10% and 15%. Results show that concrete exhibits larger tensile basic creep strain if loaded at early age. The development characteristic of tensile basic creep of concrete with different silica fume content is that development rate is relatively fast after loading 12h, and slowes down gradually after loading 12h. The early age tensile basic creep of concrete increases with the increasing of the content of silica fume.

scholarly journals Experimental Research on the Effect of Ground Slag on Basic Tensile Creep of Early-age Concrete

2015 ◽  
Vol 9 (1) ◽  
pp. 68-72 ◽  
Author(s):  
Wang Xinjie ◽  
Xia Qun ◽  
Zhu Pinghua
Keyword(s):  
Experimental Research ◽  
Creep Deformation ◽  
Tensile Creep ◽  
Basic Creep ◽  
Basic Rule ◽  
Early Age ◽  
Few Data ◽  
Early Age Concrete

Tensile creep of concrete at early ages is one of the important factors that affect the stress of restrained and partly restrained concrete. But only few data are available on tensile creep of concrete. The effect of ground slag on tensile creep was studied using lever-type tensile creep tester. Early age tensile basic creep of concrete loaded at the age of 3 days was researched. Results show that concrete exhibits large creep deformation when loaded at the age of 3 days. And the addition of ground slag decreases the early age tensile creep of concrete and tensile creep of concrete decreases with the increase of the content of ground slag. But the basic rule of the development of basic tensile creep in concrete has not been changed.

Effcets of Water-Cement Ratio on Tensile Basic Creep of Early-Aged Concrete

2011 ◽  
Vol 243-249 ◽  
pp. 5756-5759
Author(s):  
Xin Jie Wang ◽  
Ping Hua Zhu
Keyword(s):  
Constant Load ◽  
Tensile Creep ◽  
Basic Creep ◽  
Early Age ◽  
Cement Ratio ◽  
Water Cement Ratio ◽  
Compression Creep ◽  
Water To Cement Ratio ◽  
Early Age Concrete ◽  
Creep And Shrinkage

The effects of water-cement ratio on the tensile creep of early-age concrete under constant load were investigated. Creep and shrinkage of concrete under sealed curing condition was researched to determine the tensile basic creep of concrete. The results indicate that, as in compression, creep of concrete in tensile is very sensitive to water to cement ratio. The results also indicate that the tensile creep increases with the water to cement ratio. And that the tensile creep develops rapidly within the first day after loading.

Effect of SAP on the tensile creep of early-age concrete using ring specimens

2016 ◽  
Vol 22 (7) ◽  
pp. 869-882 ◽  
Author(s):  
Jianda Xin ◽  
Dahai Huang ◽  
Jianhua Li ◽  
Changzhao Lin
Keyword(s):  
Tensile Creep ◽  
Early Age ◽  
Early Age Concrete

scholarly journals Early-Age Tensile Basic Creep Behavioral Characteristics of High-Strength Concrete Containing Admixtures

2019 ◽  
Vol 2019 ◽  
pp. 1-11 ◽  
Author(s):  
Tongyuan Ni ◽  
Yang Yang ◽  
Chunping Gu ◽  
Jintao Liu ◽  
Jin Chen ◽  
...  
Keyword(s):  
High Strength Concrete ◽  
High Strength ◽  
Plain Concrete ◽  
Tensile Creep ◽  
Mineral Admixtures ◽  
Basic Creep ◽  
Early Age ◽  
Strength Concrete ◽  
Holding Period ◽  
Linear Characteristic

Tensile creep is an important parameter to evaluate cracking probability of high-strength concrete (HSC) structure, and the mineral admixtures have great effect on it. In this paper, the early-age tensile basic creep behaviors of HSC containing fly ash (FA) and blast furnace slag (BS) were investigated by experiments, and the influences of loading age and stress level (stress-strength ratio of initial loading) were evaluated. The results showed that FA promoted the early-age tensile basic creep while BS inhibited the early-age tensile creep. Moreover, the influence of loading age on early-age tensile basic creep of HSC was more significant, and the affected ages’ duration was longer than that of plain concrete. The early-age tensile basic creep of HSC containing admixtures also showed linear creep characteristic after a certain age as HSC without admixtures, and the linear characteristic was more obvious at a later loading age. The tensile basic creep velocity of HSC containing FA was the highest, while HSC containing BS exhibited the lowest velocity. The influence of admixtures on velocities of tensile basic creep was gradually attenuated with the age growth in holding period.

scholarly journals Study on the Tensile Creep for Early Age Concrete.

1999 ◽  
pp. 201-213 ◽  
Author(s):  
Keishiro IRIYA ◽  
Takafumi NEGI ◽  
Tatsuya HATTORI ◽  
Hidetaka UMEHARA
Keyword(s):  
Tensile Creep ◽  
Early Age ◽  
Early Age Concrete
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