How to make selfcompacting concrete mix design using Penttala?

hi, is anyone can share SCC mix design using Penttala design method. in Excel format for Creating a SCC mix design for my rproject ?

10 November 2018 5,323 2 View

How to quantify concrete performance using different admixtures?

How can i quantify concrete characteristic performance using different type of admixtures like high range water reducing admixture, air entraining admixture , viscosity modifying admixture...

06 July 2018 3,506 5 View

How to design Pervious concrete?

Can anyone suggest , how to design Pervious concrete design upto M25 for at different voids % & different paste volume as per ACI 522R 10 in excel format?

11 December 2017 1,672 3 View

Effect of Addition of phosphate in magnesium lignosulphonate in concrete?

what will happens on strength and shrinkage of concrete when magnesium lignosulphonate blend with phosphate?

09 October 2017 3,045 1 View

How to do ISAT test Calculation?

11 December 2016 1,181 0 View

How to synthesis polycarboxylic ether?

how can synthesis polycarboxylic ether in lab of APEG & MPEG type?

07 August 2016 8,599 0 View

What is pace rate applied in flexural strength of concrete?

Is there any relation for pace rate applied in both commpressive and flexural strength ? how pace rate determined as the size changes for cube or beam ?is there any calculation to determine pace...

31 December 2015 350 3 View

Is anyone having a astm C1702?

ASTM 1702 is related to heat of hydration of cement.i want to exact procedure as per astm standard?

10 November 2015 6,723 0 View

Need help for design of Exposed concrete?

hi, i want to know about of making a exposed concrete . in this, what should be mix design as well as combined gradation graph for aggregate.and which admixture i have to used for better expoed...

08 September 2015 6,476 0 View

What is a sixth geneation polycarboxlic ether?

Need information about polycarboxylic ether of sixth generation & its chain length,density as well as performance on concrte compared with fourth generation pce.

02 March 2015 9,420 0 View

Chlorinated organic formation in odor control scrubbers using hypochlorite?

I'm involved in a study of odor control technologies for municipal wastewater treatment plant. One of the control options involves a chemical 2-stage (acid/alkaline) packed bed scrubber. The...

03 March 2021 3,661 2 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

Ester cleavage conditions?

Hi all, I need to cleave the ester in Ethyl 2-amino-1H-imidazole-5-carboxylate to make the carboxylic acid and retrieve the product from solution to use in downstream applications of linking to...

01 March 2021 8,766 3 View

Modeling viscosity using model of Chung?

Hello, As part of simulation of gases mixture and water, I need to calculate viscosity of the fluid components and I am using relationships proposed by Chung et al. (1988). The irony is while I...

25 February 2021 8,053 5 View

What is the suitable range of Sulfur content and Viscosity of Heavy fluid Oil that used in Kiln?

What is the disadvantages of high sulfur content to the ceramic burning process? and what is the effect of outranged viscosity?

24 February 2021 8,219 2 View

How can we theoretically calculate Elemental analysis(percentage) of atoms in covalent organic framework?

For example in one research article the Elemental analysis values of COF-TpPa-1 ( Triformylphloroglucinol (Tp) (63 mg, 0.3 mmol), Paraphenylenediamine (Pa-1) (48 mg, 0.45 mmol) are as follows...

24 February 2021 1,265 6 View

How to Control Whiteflies in coconut leaves?

24 February 2021 1,005 1 View

What reaction will occur when adding hexamine into ammonium nitrate in an acidic medium?

Hello, I am investigating properties of water in oil emulsion explosives. And adding hexamine (hexamethylenetetramine) into one of the phases that are used to make the emulsion should increase the...

21 February 2021 8,680 1 View

How to get/count refractive index in gasses?

20 February 2021 8,202 6 View

How to determine number concentration of polymer solutions using viscosity experiment?

I have synthesized PNIPAM (Poly (N-isopropylacrylamide)) microgels, which are copolymerized with oligo-ethylene glycol based comonomers. I have to determine the exact number concentration for each...

19 February 2021 5,205 5 View