4—effects of recycled aggregates on concrete properties

... and Concrete Research 33 (2003) 417–424 EFFECTS OF CHLORIDE ION IN NSS ON THE PROPERTIES OFMECHANICAL PROPERTIES OF NSS CONCRETE CONTAININGDURABILITY OF NSS CONCRETE CONTAINING SCMs EXPOSEDCONCLUSIONS ... 2.3.1 Influence of carbonation on microstructure and mechanical properties of concrete Long-term carbonation reactions significantly alter the structure and properties of concrete, impacting ... of constituents on rheological properties of fresh concrete-A review, Cement and Concrete Composites 83 (2017) 146–[68] M Batog, Z Giergiczny, Influence of mass concrete constituents on its properties,

Ngày tải lên: 04/07/2021, 17:54

... article as: Vuong Duy Ngo, Thinh Duc Luu, Toi Van Vo, Van-Thanh Tran, Wei Duan, Phuong Ha-Lien Tran, Thao Truong-Dinh Tran, An investigation of effects of modification processes on physical properties ... Dissolution studies 3.1.1 Effect of types of rice The drug release behaviors depend on type of the matrix, capability of swelling, diffusion and erosion process [27] Hydrophilic polymers are commonly ... additional incubation step before heating the rice (F10 compared to F1) Figure 5 shows the effect of incubation method in the modification process on the dissolution rate of tablets For incubation

Ngày tải lên: 14/12/2017, 17:50

... overall consistency of the product due to protein degradation and/or decreased water holding by the non-fat fraction resulting in an increased softening of the spread particularly towards the end of ... delay the process of oxida-tion during the storage periods (Basaran et al 1999). 3.3 Effects of pH values on the OSI of B-LFS and C-LFS The effects of pH values on the OSI values of the samples ... β-carotene led to a prolonging of the OIT for C-LFS samples as compared to B-LFS Trang 63.4 Effects of pH values on the FAC of B-LFS and C-LFS The effects of the pH values on the FAC of each B-LFS and

Ngày tải lên: 02/11/2022, 09:31

... structural analysis of reinforced concrete (RC) columns made of recycled aggregate concrete (RAC) and natural aggregate concrete (NAC) under concentric compressive load The ratio of recycled aggregates ... International Journal of GEOMATE, 20(78). [18] RILEM Recommendations - 121-DRG Guidance for demolition and reuse of concrete and masonry (1994) Specifications for concrete with recycled aggregates ... No.12/2002 (Hong Kong) Moisture Water Apparent (b) Capping of concrete samples Figure 1 Origin of concrete samples (C20/25) Table 1 Compressive strength of drilled concrete cores Sample Dimensions (mm)

Ngày tải lên: 05/07/2022, 11:23

... billet-on-billet extrusion on a 300 ton Cincinnati Milacron hydraulic extrusion press The working parameter of billet extrusion for production of redraw rod was as follows: pressing capacity: 300 tons; ... strength of wire samples aged without solution heat treatment, but elongation of those samples is greater than the elongation of samples aged without solution heat treatment The reason for this ... increased response to artificial aging The addition of iron can refine grain structure and increase the mechanical properties of Al-Mg-Si alloy [11, 12] Deformation of supersaturated solid solution causes

Ngày tải lên: 13/01/2020, 04:06

... (MPa.%) Tension Compression Tension Compression Tension Compression 159 (f) Tensile toughness Figure 9 Response of normalized parameter versus fiber content of SFCs Table 5 Slope of normalized ... full bond of fiber-matrix included 3 zones: the debonded length (Ld), the softening length (Ls), and the bonded length (Lb), the total of Ld and Ls was defined as the length of the damage zone ... Toughness Figure 6 Comparison of mechanical properties of SFCs Figs.7 and8 display cracking behaviors of SFCs under tension and compression, respectively Under tension, the SFCs produced the multiple

Ngày tải lên: 25/11/2020, 20:08

... 3.1 Regression between concentrations of compound and water absorption of Geohumus 47 Table 3.2 Impact of types and concentration of chemical compounds on water holding capacity of Geohumus (ml ... solution, and soil extract plus nutrient), concentration of nutrient solution, concentration and valance types of selected salts, soil incorporation depth Trang 21INTRODUCTION xx A second series of ... ions and release of nutrients 7 1.2.4 pH-effects on water absorption of hydrophilic polymers and retroaction 8 1.2.5 Effect of polymers on soil moisture 9 1.2.6 Effect of polymers on soil properties

Ngày tải lên: 28/02/2021, 20:33

... 3.1 Regression between concentrations of compound and water absorption of Geohumus 47 Table 3.2 Impact of types and concentration of chemical compounds on water holding capacity of Geohumus (ml ... solution, and soil extract plus nutrient), concentration of nutrient solution, concentration and valance types of selected salts, soil incorporation depth Trang 21INTRODUCTION xx A second series of ... ions and release of nutrients 7 1.2.4 pH-effects on water absorption of hydrophilic polymers and retroaction 8 1.2.5 Effect of polymers on soil moisture 9 1.2.6 Effect of polymers on soil properties

Ngày tải lên: 01/03/2021, 13:46

... 3.2 Efffect of silver concentration on CuAl x O y properties 52 3.2.1 Thickness of thin films 52 3.2.2 Optical properties 54 3.2.3 Electrical properties 58 3.2.4 FOM 65 4 CONCLUSION 67 REFERENCES ... exploitation of the electronic properties of TiO2 thin films and particularly in optoelectronic devices [18] 1.2.2 Electrical properties The vacancy formation is the most important condition for ... Deposition conditions of the preparation were modified in order to reach the best thin films We analyzed the results of conductive properties by the 4-point probe method, results of optical properties

Ngày tải lên: 17/03/2021, 08:59

... preparation Ammonium molybdate-antimony potassium tartrate solution, Ascorbic acid solution, Sulfuric acid, 11 N solution Ammonium molybdate-antimony potassium tartrate solution: Dissolve 8g of ammonium ... concentrations due to insufficient transformation of organic material from solid to liquid Conversely, higher temperatures and extended reaction times enhance the conversion and dissolution of ... gases like methane and carbon dioxide This waste not only contributes to emissions during decomposition but also during transportation Furthermore, the conversion of forests and natural habitats

Ngày tải lên: 12/12/2021, 21:02

... DÒNG ĐIỆN LÊN NGƯỜI VÀ GIA SÚC – PHẦN 4: ẢNH HƯỞNG CỦA SÉT Effects of current on human beings and livestock – Part 4: Effects of lightning strokes Lời nói đầu TCVN 9621-4:2013 hoàn toàn tương ... DÒNG ĐIỆN LÊN NGƯỜI VÀ GIA SÚC – PHẦN 4: ẢNH HƯỞNG CỦA SÉT Effects of current on human beings and livestock – Part 4: Effects of lightning strokes 1 Phạm vi áp dụng và mục đích Tiêu chuẩn này ... dốc trung bình của dòng điện tăng trong mỗi sét, cũng như thời gian tồn tại sét và tổng thời gian tồn tại chùm sét trong trường hợp có nhiều hơn một xung sét trong một chùm sét Ảnh hưởng về cơ có

Ngày tải lên: 24/12/2021, 22:24

... between concrete and rebar is one of the key properties of concrete used in reinforced concrete structures The technical features of reinforced concrete structures depend on this property Bond strength ... determination bond stress of concrete and reinforcement D12 Table 3 8 Results determination bond stress of concrete and reinforcement D16 Table 3 9 Results determination bond stress of concrete ... reinforced concrete structures: Carbonation of concrete due to cavitation air ingress and cavitation of ions In the first case , CO 2 in the air penetrates into the concrete through a network 2 of pores

Ngày tải lên: 15/03/2022, 21:55

... ε1(0) of pure β -Ga2O3 is 1.36, which is smaller than the experiment results The underestimation of ε1(0) is due to the low number of conduction bands and overlook of phonon contribution When ... 6-fold Ga ions and one 4-fold Ga ion surrounded, while two 4-fold Ga ions and one 6-fold Ga ion are adjacent to VOII For Ga ions, there are two nonequivalent sites, the 4-fold one and 6-fold one, respectively ... Gradient Approximation (GGA) exchange-correlation functional40 The ultrasoft pseudopotential method was used for the interactions between the electrons and ions The atomic configuration of Ga was [Ar]

Ngày tải lên: 24/11/2022, 17:43

... horizon in 2009 (0.57 pH units from a pH of 4.21 for the control variant to a pH of 3.64 for SNPK) corresponds to the 3.7 times larger concentration of the hydrogen ion in one litre of solution ... only to the 1.6 times larger concentration of the hydrogen ion in one litre of solution in the AE horizon of SNPK compared with the soil in the AE horizon of the control sample used The decrease ... magnesium After one year of fertilization on the Wisła experimental plot, the pH of the Ofh horizon increased, while the pH of the mineral horizons significantly decreased Enrichment of serpentinite

Ngày tải lên: 24/11/2022, 17:48

... aromatization process, as the formation of aromatic bonds reduces the hydrochar's carbon content Therefore, the impact of reaction time on aromatization reactions warrants further investigation (Basso, ... preparation Ammonium molybdate-antimony potassium tartrate solution, Ascorbic acid solution, Sulfuric acid, 11 N solution Ammonium molybdate-antimony potassium tartrate solution: Dissolve 8g of ammonium ... formation of 5-HMF and its conversion into formic or levulinic acid (Basso, 2016) Additionally, lignin degradation results in the production of phenolic compounds.The decarboxylation and dehydration

Ngày tải lên: 06/11/2023, 05:09

... Proportions of concretes with RCA in comparison to control 67 concrete Table 3.1 Water Absorption Capacity of Recycled Concrete Aggregates 82 Table 3.2 Particle Density of Recycled Concrete Aggregate ... 5.2 Properties of Recycled Concrete Aggregates 152 5.3 Properties of Recycled Aggregates Concrete 157 CHAPTER CONCLUSIONS AND RECOMMENDATIONS 6.1 Conclusions 163 6.2 Recommendations 166 REFERENCES ... 92 Durability of Aggregates Properties 93 3.4.1 93 Alkali Silica Reaction (ASR) CHAPTER PROPERTIES OF RECYCLED AGGREGATES CONCRETE 4.1 4.2 Properties of Fresh Recycled Aggregates Concrete 96 4.1.1...

Ngày tải lên: 05/10/2015, 19:06

... these conditions, hence the lack of reformation of POR-PChlide650 Addition of low concentrations of NADPH to PLB aged at pH 7.5 which show only limited structural reorganization, in contrast, ... percentage photoconversion in response to one, two, and four saturating flashes of white light (B) Variation of the wavelength of the absorption maximum of PChlide with NADPH concentration Ó FEBS 2002 ... The effect of the presence of the adenylates on the ability of POR-PChlide640 to undergo photoconversion was checked by comparing the efficiency of photoconversion of PLB samples containing excess...

Ngày tải lên: 22/02/2014, 04:20

... parameterization of sorption, Journal of Environmental Quality 26 (1997) 49 C.D Tsadilas, T Matsi, N Barbayiannis, D Dimoyiannis, Influence of sewage-sludge application on soil properties and on the ... probably due to the concentration of Zn being higher in the chicken manure than in the composted manure There were no significant effects of biosolids application on concentration of Rev Aq Reg Cd ... a function of biosolids application, except for Pb in the Ha Tay experiment (Table and Fig 3) The NH4NO3-extracted fractions of Cd, Cu, Pb and Zn constituted only a small proportion of the EDTA-extracted...

Ngày tải lên: 05/03/2014, 16:20

... than control pcDNA–HEK293 cells Nontoxic concentrations of each polyphenol were used in combination with increasing concentrations of etoposide to determine the effects of the polyphenols on IC50 ... following conditions: reverse transcription (20 at 61 °C), one cycle of denaturation at 95 °C for 30 s, and PCR of 45 cycles with denaturation (15 s at 95 °C), annealing (30 s at 58 °C) and elongation ... daunomycin accumulation in Pgp-expressing cells in a manner that depends on both the concentration of the flavonoids and the level of Pgp expression It has been proposed that the flavonoids interacted...

Ngày tải lên: 07/03/2014, 21:20

... values of δγ as a function of NiO content are shown in Table The parameter δγ increased with increasing NiO content, confirming that the addition of NiO promoted the diffuse phase transition of the ... a pronounced diffuseness transition [18-22] The La ions are effective in breaking the long-range order and produce Ti vacancies This breakage of long-range ordering leads to a reduction of the ... to the Ni ions substituting the Ti ions (at the B site) Therefore, substitution of the Ni ions at the B site may result in breaking the long-range ordering, resulting in a reduction of the ferroelectric...

Ngày tải lên: 20/06/2014, 23:20