A. Zingg, F. Winnefeld, L. Holzer, et of polyelectrolytes and its influence on the rheology, zeta potential, and microstructure of various cement and hydrate phases J. Colloid Interface Sci., 323 2 2008, pp. 301312Get Price
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The influence of the specimens geometry on the mechanical properties of cement mortars with addition of carbon and basalt fibers has been studied.
Assuming an increase in cement content for no increase in water demand, the water cement ratio will decrease. If the water cement ratio reduces, the strength of the concrete will increase. The influence of cement content on workability and strength is an important one to remember and can be summarized as follows
Thus, the influence of concrete surface preparation methods used GR and SB and the bond length adopted 150, 200 and 250 mm on the following key aspects is investigated i response in terms of pull shear force vs. loaded end slip curves F ls l, ii maximum shear force F l,max and iii total energy G f.
We used this model to analyze the influence of CA mortar debonding on concrete damage distribution and mechanical responses of the track slab near the anchorages. 2. Concrete damaged plasticity model based on the damage mechanics. The concrete damaged plasticity model is based on damage mechanics theory.
Influence of cement paste matrix properties on the autogenous curing of highperformance concrete. Abstract. A novel approach to has been recently proposed mitigate selfdesiccation, one of the foremost problems of highperformance concrete HPC. It is based on incorporation of presoaked lightweight aggregate in the concrete mix.
The influence of concentration of cement particles c on rheological behavior flow behavior, dynamic yield stress, plastic viscosity and thixotropy of the Portland cement CEM I 42.5 R paste was
The sulfate resistance of concrete containing fly ash was investigated in a laboratory study in which concrete specimens were continuously soaked in a 10 percent sodium sulfate solution for 18 months. Eighteen fly ashes and two other pozzolans were used as a partial replacement for Type II portland cement in a standard 4000psi mixture design.
A theory of the influence of aggregate properties on concrete shrinkage is presented. An equation is derived from which the shrinkage of concrete may be computed from the fractional volume, the modulus of elasticity, and the shrinkage of cement paste and aggregate. A comparison is made between theoretical and experimental results.
A. Zingg, F. Winnefeld, L. Holzer, et of polyelectrolytes and its influence on the rheology, zeta potential, and microstructure of various cement and hydrate phases J. Colloid Interface Sci., 323 2 2008, pp. 301312
Most of the investigations on foam concrete in the past have been confined to neat cement paste, cement paste with partial replacement with admixtures and to cementsand mixes. This paper reports the results of a systematic study to ascertain the influence of filler type i.e., sand and fly ash and the particle size of sand on the properties
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