Effect of newly developed lignosulphonate superplasticizer o

Effect of newly developed lignosulphonate superplasticizer on properties of cement pastes and mortars

... EFFECT OF A NEWLY DEVELOPED LIGNOSULPHONATE SUPERPLASTICIZER ON PROPERTIES OF CEMENT PASTES AND MORTARS SUN DAO JUN (B Eng (Hons.), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING ... Chapter Fig 4-1 Effect of SO3 content on heat of cement hydration 143 Fig 4-2 Rate of heat evolution of cement pastes (w/c = 0.34) 143 Fig 4-3 Rate...

Ngày tải lên : 05/10/2015, 19:03

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Designation: C 243 – 95 - Bleeding of Cement Pastes and Mortars1 potx

... diameter collecting ring, cm2, and t time during which bleeding occurs at a uniform rate, s 9.2 Bleeding Capacity—Calculate the bleeding capacity as follows: Tests on Mortars 8.1 Batch—The mortar ... shall consist of 930 g of cement and 2325 g of graded sand as specified in Specification C 778 The amount of mixing water, measured in grams, shall be such as to produce a flow...

Ngày tải lên : 10/07/2014, 23:20

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Designation: C 305 – 99 - Mechanical Mixing of Hydraulic Cement Pastes and Mortars of Plastic Consistency1 docx

... mixer for 15 s and during this time scrape down into the batch any paste that may have collected on sides of the bowl C 305 the batch any mortar that may have collected on the side of the bowl; ... the bowl shall be quickly scraped down into the batch with the scraper prior to remixing NOTE 4—Caution: The clearances between the paddle and the bowl speciﬁed in this practice are sui...

Ngày tải lên : 10/07/2014, 23:20

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Báo cáo hóa học: " Properties of nanocones formed on a surface of semiconductors by laser radiation: quantum confinement effect of electrons, phonons, and excitons" pptx

... excitons, phonons, etc.) in nanocone is a special case, since diameter of nanocone is a monotonous function of height, leading to gradual change of bandgap Graded bandgap structure has an effect on ... formation of nanocones on the irradiated surface of a semiconductor by selective laser heating of the top layer with following mechanical plastic deformation...

Ngày tải lên : 20/06/2014, 22:20

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EFFECT OF CASSAVA PULP AND SWINE MANURE COMPOST ON GROWING PLANTS IN GREENHOUSE

... effect of compost forms (ground and pelletized) on soil chemical properties; and 2) investigate the effect of ground and pelletized compost on plant growth and macronutrient accumulation in plants ... ground compost This research examined the effect of ground and pelletized cassava and swine manure compost on soil properties and plant growth T...

Ngày tải lên : 05/09/2013, 09:08

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Tài liệu Báo cáo khoa học: Effect of ionic strength and oxidation on the P-loop conformation of the protein tyrosine phosphatase-like phytase, PhyAsr docx

... al Effect of ionic strength and oxidation on PhyAsr A A R258 R258 C252 OCS 252 B B R258 R258 OCS252 C252 Fig (A) Conformation of the P-loop at low ionic strength in the absence of ligand The P-loop ... Structure of PhyAsr under low and high ionic strength conditions To examine the structural effect of ionic strength on the P-loop, X...

Ngày tải lên : 18/02/2014, 18:20

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Tài liệu Báo cáo khóa học: The effect of mutations surrounding and within the active site on the catalytic activity of ricin A chain pptx

... IMAGEQUANT software, and depurination was calculated by relating the amounts of the small aniline-fragment and 5.8S rRNA and expressing values as a percentage Reassociation and quantiﬁcation of ... carried out for each individual atom Data collection and reﬁnement statistics are given in Table Assay of the N-glycosidase activity of ricin A chain variants The...

Ngày tải lên : 19/02/2014, 12:20

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Tài liệu Báo cáo khoa học: Effect of sequence polymorphism and drug resistance on two HIV-1 Gag processing sites pdf

... bold b The type of mutation: natural polymorphism (P), mutation appearing only in drug resistance (R, see Fig 1) If two mutations occurred and one of them was occurring only in drug resistance, the ... Stock solutions and dilutions were made in distilled water and the peptide concentrations were determined by amino-acid analysis Construction and puriﬁcation of HIV-1...

Ngày tải lên : 21/02/2014, 03:20

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Báo cáo khoa học: Protective effect of dietary curcumin and capsaicin on induced oxidation of low-density lipoprotein, iron-induced hepatotoxicity and carrageenan-induced inﬂammation in experimental rats ppt

... controls Protective effect of dietary curcumin, capsaicin and their combination on iron -induced LDL oxidation in vivo and copper -induced LDL oxidation in vitro Oxidation of LDL observed in iron(II) ... Manjunatha and K Srinivasan Protective effect of dietary curcumin, capsaicin and their combination on iron -induced LDL oxidation in viv...

Ngày tải lên : 08/03/2014, 08:20

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Báo cáo khoa học: Effect of monovalent cations and G-quadruplex structures on the outcome of intramolecular homologous recombination doc

... Effect of cations and G-quartets on recombination P Barros et al studies on the inﬂuence of salts on the recombination process have analyzed how monovalent cations could affect the ﬁdelity of ... involved in the generation of duplications in the presence of a G-quadruplex According to this, the generation of duplications is explained by replicatio...

Ngày tải lên : 29/03/2014, 23:20

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Báo cáo hóa học: " Effect of visual distraction and auditory feedback on patient effort during robot-assisted movement training after stroke" ppt

... Secoli et al.: Effect of visual distraction and auditory feedback on patient effort during robot-assisted movement training after stroke Journal of NeuroEngineering and Rehabilitation 2011 8:21 ... their nonparetic arm ("Stroke-N”), and control participants without stroke ("Control”) Task A: Baseline tracking without distractor or sound feedback Distract...

Ngày tải lên : 19/06/2014, 08:20

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báo cáo hóa học:" The effect of abductor muscle and anterior-posterior hip contact load simulation on the in-vitro primary stability of a cementless hip stem" ppt

... translational migration and micromotion components are presented as 'total translational migration' and 'total translational micromotion' Similarly, the terms 'total rotational migration' and ... total translational migration The average absolute rotational migration was smaller than 0.04° in the sagittal and frontal planes, but much larger in the transverse plane (rotation ab...

Ngày tải lên : 20/06/2014, 04:20

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báo cáo hóa học:" Risk factor analysis for early femoral failure in metal-on-metal hip resurfacing arthroplasty: the effect of bone density and body mass index" potx

... Risk factor analysis for early femoral failure in metal-onmetal hip resurfacing arthroplasty: the effect of bone density and body mass index Thomas P Gross, Fei Liu§ Midlands Orthopaedics, ... that a body mass index ≥35kg/m2 increases the complexity of exposing the hip and accurately placing the 13 component, therefore increasing the ri...

Ngày tải lên : 20/06/2014, 07:20

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Báo cáo hóa học: " The Effect of Single, Binary and Ternary Anions of Chloride, Carbonate and Phosphate on the Release of 2,4-Dichlorophenoxyacetate Intercalated into the Zn–Al-layered Double Hydroxide Nanohybrid" pot

... solutions: chloride, carbonate and phosphate and the combination of them by adding about 0.34 g of ZANDI into a 500 ml of the aqueous solution The accumulated amount of 2,4-D released into the ... Fig Release proﬁles of 2,4-D from the interlamellae of ZANDI, the nanohybrid into various aqueous solution systems containing single, binary and tern...

Ngày tải lên : 22/06/2014, 00:20

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Báo cáo lâm nghiệp: "Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts" pptx

... effect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulation of beechnut germination Materials and methods Seeds Three beechnut seedlots with a moisture content of 8.6–9.0% ... mg·l–1 of ethephon or 40 mg·l –1 of GA 3, – dormant seeds treated with 100 mg·l–1 of ethephon or 300 mg·l–1 of GA3, – dormant seeds treated with 120 mg·l...

Ngày tải lên : 07/08/2014, 10:21

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