The optimization of mix proportions based on the targeted fresh and hardened performances self-compacting concrete (SCC) is a foundation for its transition from laboratory research to industrial production. In this paper, various SCC mixtures were designed by absolute volume method with changes in content river sand manufactured sand, fly ash granulated ground blast furnace slag (GGBS) maximum particle sizes coarse aggregates. This experimental study was carried out verify workability,...

With the sustainable development of green construction materials in civil engineering, self-compacting steel fiber reinforced concrete (SC-SFRC) has attracted widespread attention due to its superior performance and excellent hardened properties. In this paper, 301 groups test data from published literatures were collected quantify characteristics mix proportion SC-SFRC. The type, aspect ratio volume fraction commonly used SC-SFRC are discussed effects on workability mechanical properties...

This article presents 755 groups splitting tensile strength tests data of concrete with manufactured sand (MSC) in different curing age ranged from 1 day to 388 days related the research "Experimental study on development sand" (Zhao et al., 2017) [1]. These were used evaluate precision prediction formulas MSC, and can be applied as dataset for further studies.

This paper studies the effect of high-strength steel fiber reinforced concrete (SFRC) on axial compression behavior rectangular-sectional SFRC-filled tube columns. The purpose is to improve integrated bearing capacity these composite Nine columns and one normal concrete-filled column were designed tested under loading failure. compressive strength concrete, volume fraction fiber, type internal longitudinal stiffener spacing circular holes in perfobond rib considered as main parameters....

A scientific and concise mix design method is an impending problem in the engineering application of self-compacting steel-fiber-reinforced concrete (SFRC). This paper focuses on proportion SFRC, which influenced by steel fibers, along with its effects packing properties fiber aggregate skeleton. In total, 252 groups tests were carried out for several main factors, including various maximum particle sizes coarse aggregates, manufactured sand ratios ranging from 50% to 62%, different types...

Durability of concrete is great significance to prolong the service life structures in corrosive environments. Aiming at economical and environment-friendly production by comprehensive utilization supplementary cementitious materials made industrial byproducts, resistances chloride penetration, sulfate attack, frost high-performance were studied this paper. Fifteen concretes designed different water–binder ratio with changes contents fly ash (FA), silica fume (SF), ground granulated...

Due to the mechanical properties related closely distribution of steel fibers in concrete matrix, assessment tensile strength self-compacting fiber reinforced (SFRC) is significant for engineering application. In this paper, seven groups SFRC were produced with mix proportion designed by using fiber-aggregates skeleton packing test method. The hooked-end length 25.1 mm, 29.8 mm and 34.8 used, volume fraction varied from 0.4% 1.4%. axial notched sectional prism specimen splitting cube carried...

When the vertical joints of monolithic precast concrete structures are cast by self-compacting concrete, design formwork under rational lateral pressure becomes a key technical issue. In this paper, prototype simulation test was conducted for pouring in joint walls. The continuously poured from top with height 2.8 m without any assistance such as delivery tube. measured at different heights varying casting time. Results showed that increased increase slump-flow fresh reaching peak value...

Reliable bond of steel fiber in concrete is a key problem relating to the reinforcing effect on matrix and for guide significance optimal design geometry mechanical properties fiber. In this paper, basis multi-indices evaluation single hooked-end fiber, indices synergistic different deformed fibers are proposed. The pull-out tests were carried out embedded mortar wet-sieved from self-compacting SFRC with manufactured sand. Fourteen types used, including six hooked-end, two crimped, four...

Considering the random orientation and distribution of steel fibers in concrete, synergistic reinforcement on concrete is much complex than bond single fiber. It meaningful to study behavior fiber during many actions. With inclination angle pullout direction spacing as main factors, this paper carried out fifteen groups tests for hook-end embedded manufactured sand mortar. The ranged from 0 60°, 3.5 mm 21.2 mm. characteristic load-slip (PL-S) curve are given after treating original complete...

Aimed at improving the production efficiency of tetrahedron-like pervious frames for river revetment, self-compacting steel fiber reinforced concrete (SFRC) was applied to strengthen tensile resistance remove conventional bars used as reinforcement. The workability and mechanical properties SFRC were experimentally studied with volume fraction changed from 0.4% 1.2%, rational 0.8% determined producing frames. Based on flow-induced orientation fibers in fresh mix, casting process optimal one...

This paper presents 186 groups compressive strength tests data of concrete with manufactured sand (MSC) in different curing age and 262 MSC at 28 days collected from authors' experiments other researches China. Further interpretation discussion were described this issues.

To ensure the quality of concrete construction, workability fresh mix measured by rational test methods is critical to be controlled. With presence steel fibers, whether and evaluation indices self-compacting (SCC) are adaptable for fiber reinforced (SFRC) needs systematically verified. In this paper, seven groups SFRC, referenced with one group SCC, were prepared using proportion design method based on fiber-aggregates skeleton packing test. The main factors included volume fraction length...

A new reinforced SFRFLC (abbr.steel fiber full-lightweight concrete) superposed beam was proposed to sufficiently utilize the good peculiarities of ordinary concrete in compression and tension, reduce its self-weight.Experimental study carried out on flexural behaviors beams compared with beams, effects such factors as sectional depth SFRFLC, volume fraction steel fiber, longitudinal tensile reinforcement ratio strength were analyzed.Based composite principle, formulas are for calculating...

Concerning the structural applications of steel fiber reinforced expanded-shales lightweight concrete (SFRELC), present study focuses on flexural fatigue performance SFRELC superposed beams with initial static-load cracks. Nine were fabricated depth varying from 50% to 70% whole sectional depth, and volume fraction ranged 0.8% 1.6%. The load exerted was a constant amplitude sinusoid frequency 10 Hz characteristic value 0.10; upper limit taken as corresponded maximum crack width 0.20 mm at...

As many differences with natural sand in particle shape, surface characteristics and grading, especially larger content of stone powder, machine-made has the important effects on workability fresh concrete strength hardened concrete. By reviewing formerly experimental results sand, this paper gives out comprehensively table including effective test data for statistical analysis. The unified formula is proposed to calculate water cement ratio plastic, pasty flowing design procedure mix...

In order to explore the effect of several common crops (wheat, corn, rice) straw on properties cement-based materials, fiber-cement composites were prepared by dividing into cement. The physical and mechanical three investigated different pretreatment methods, fiber content length. results show that hemicellulose in decreases greatly methods (cold water, 4% NaOH solution hot alkali), retarding time cement is weakened obviously. increase dimension length disadvantageous strength composites;...