Alkali water

Fly ash is an active mineral admixture used commonly in the production of blended Portland cement. Fly ash improves many important properties of cement and cement concrete: increasing late compressive strength, increasing sulfate resistance, reducing heat of hydration, reducing alkali-silica reaction and reducing water permeability.

5p visharma 20-10-2023 7 4   Download

Part 1 of ebook "Building materials (Thrid revised edition)" presents the following content: principal properties of building materials; structural clay products; rocks and stones; wood and wood products; materials for making concrete-I cement; materials for making concrete-II aggregates; materials for making concrete-III water; materials for making concrete-IV lime; puzzolanas;...

260p damtuyetha 09-01-2023 10 2   Download

To understand the architecture of the plant cell wall, it is of importance to understand both structural characteristics of cell wall polysaccharides and interactions between these polysaccharides. Interactions between polysaccharides were studied in the residue after water and chelating agent extraction by sequential extractions with H2O and alkali.

10p vihermione 06-01-2023 7 2   Download

The self-assembly and gelation of low-methoxyl diluted alkali-soluble pectin (LM DASP) from pear fruit (Pyrus communis L. cv. Conference) was studied in water and salt solutions (NaCl and CaCl2, constant ionic strength) without pH adjustment at 20 ◦C.

11p viginny 30-12-2022 17 2   Download

Due to the large disposal of locally industrial wastes and the shortage of natural resources, turning industrial by-products into green artificial materials has been attracting many researchers in the world. Following this trend, this study evaluated the potential application of self-produced artificial sand (AS) in the production of green mortar.

9p viaudi 29-08-2022 4 2   Download

Glutamic functionalized water-soluble perylene diimide, N, N’-di (l-glutamic amine)-perylene-3,4,9,10- tetracarboxylic diimide (GAPTCD) has three absorbance maxima at 469, 498, and 534 nm and two emission peaks at 550 and 587 nm. Owing to the highly negative electrostatic potential of the perylene plane, the perylene derivative showed good water solubility and strong fluorescence in alkali and neutral solutions. Both the absorbance and emission intensities decreased with the decreasing of pH from 9.66 to 5.92.

8p langthannam 29-12-2021 12 0   Download

A field investigation was conducted during 2004-2005 at Karanja Ramzanpur, village in Purna valley in Vidarbha region. The experimental was laid out in Randomized Block Design, consisting of seven treatments i.e. 100 % RD of NPK, 50 % RD of NPK, PSB 10 kg ha-1 , crop residue @ 2 t ha-1 and alkali water irrigation passed through gypsum bed (30 cm thickness). The initial pHs, ECe, SAR and ESP representative soil varied from 8.51 to 8.40, 1.06 to 1.18, 15.17 to 9.22, 18.36 to 12.19 respectively.

14p caygaocaolon8 07-11-2020 17 2   Download

A field experiment was carried out at Crop Research Farm, Nawabganj, C. S. Azad University of Agriculture and Technology, Kanpur during Rabi 2012-13 and 2013-14 in sodic soil with the initial pH 9.5, EC 2.42 dSm-1 , organic carbon 1.2 g kg-1 and exchangeable sodium percentage (ESP) 57.10. Tube-well water used for irrigation was alkaline in nature with pH 8.2, electrical conductivity (EC) 1.19 dSm-1 , sodium absorption ratio (SAR) 10.2 m mol1/2 L -1/2 and residual sodium carbonate (RSC) 8.8 me L-1 .

5p kethamoi6 29-06-2020 11 0   Download

Immersion of painted idols and addition of organic wastes in the lake water, as a part of religious activities, is a common religious practice in India. These activities add to the contamination of water with alkali, alkaline earth metals and heavy metals and therefore, degrade water quality and limit conservation of good quality water in the lakes. In this pretext, periodic analysis of Madiwala and Lalbagh lake water were carried out to investigate the impact of idol immersion activities on the lake water quality.

10p angicungduoc5 12-06-2020 14 3   Download

Starches from the wheat (UP262, PBW343), rice (PB2, PD19) and millets (Finger millet VL Mandua-352, Barnyard millet VL Madira-207, Foxtail millet DHFT-109-3) were isolated by alkali extraction method and characterized for morphologically and biochemical properties. The morphological properties of starch granules were studied by scanning electron microscope. The infrared spectroscopy is sensitive to structural changes on starch macromolecule, such as helicoidal chain conformation, crystallinity, retrogradation and water content.

18p nguathienthan5 04-06-2020 10 1   Download

An experiment with a total of 36 rice entries consisted of 28 cross and eight parental lines were evaluated to estimate the variability parameters for 10 yield attributing character, 6 physical quality traits; 8 cooking and chemical quality traits of rice cultures. Analysis of variance revealed the existence of significant differences among cultures for all traits studied. High PCV coupled with GCV was recorded for gel consistency and alkali spreading value revealed wider variability for these traits.

9p angicungduoc4 26-04-2020 22 0   Download

The experiment was conducted during 2015-2017 in kharif and rabi season on Crop Research Station, Nawabganj, C.S. Azad University of Agriculture and Technology, Kanpur to carried out the on rice and wheat crop of cropping system with seven treatments i,e.

9p quenchua4 16-04-2020 9 1   Download

The treated industrial wastewater has been, continuously used for crop production in the water scares region of our country. Irrigation with agro-based industrial wastewater (treated paper mill effluent) though it initially increased the yield of many crops, over a period; it deteriorates the soil quality by addition of soluble salts in soil profile results in deflocculating of soil structure, reduced infiltration and waterlogging leads to yield reduction in some crops under poor management condition.

10p cothumenhmong1 08-12-2019 20 0   Download

In this study, hydrogen sulfide (H2S) removal rate by different alkali and oxidative absorbing solutions (i.e., NaOH, Ca(OH)2, NaOCl, Ca(OCl)2, and water) was compared using a packed absorption column. The results showed that NaOH solution was the suitable absorbent based on its removal efficiency, mass transfer coefficient, and overall enhancement factor.

9p viaphrodite2711 15-10-2019 8 0   Download

Polymer modified alkali treated jute fibre as a reinforcing agent, substantially improves the physical and mechanical properties of cement mortar with a mix design cement:sand:fibre:water::1:3:0.01:0.6. The workability of the mortar is found to increase systematically from 155 ± 5 mm (control mortar) to 167 ± 8 mm (0.2050% polymer modified mortar). The density of the mortar is increased from 2092 kg/ m3 to 2136 kg/m3 with a concomitant reduction of both water absorption and apparent porosity. Optimal polymer content in emulsion (0.

9p christian2605 11-10-2019 12 2   Download

The possibilities of dissolving grade pulp production from poplar by an ethanol-water process were investigated. The effects of ethanol ratio, cooking temperature and acid catalyst ratio on unbleached, bleached and alkali-purified pulps were studied. It was seen that catalyst ratios exceeding 0.01% caused serious yield and viscosity losses.

7p aquaman27 15-01-2019 10 1   Download

There have been some problems reported associated with the use of alkyl ketene dimer (AKD) in alkali papermaking. Excessive use of size emulsion, poor size performance when filler used, problems with back water contamination, poor retention, and formation of pitch deposits on machinery are some of the problems experienced during papermaking operations.

8p aquaman27 15-01-2019 22 1   Download

Corn stalk is a renewable natural resource that currently has limited industrial utilization. The objective of this study was to examine some chemical properties of corn stalk (holocellulose, α-cellulose, lignin and ash content, alcoholbenzene, hot and cold water solubility, and solubility in dilute alkali [1% NaOH]) and to evaluate its suitability for medium-density fiberboard (MDF) production.

10p masterbarista 15-01-2019 30 1   Download

In this study, the oxide layer on 6061 Al alloy was produced in a free-alkali ion electrolyte containing calcium phosphate and ammonia water by PEO method. Microstructure, micro-hardness and corrosion resistance of PEO coated were investigated and discussed. Surface morphology analysis indicated the coating characterized by micro-pores, pan-cakes like, and micro-crakes with pore size and percentage of pores on coating surface are smaller than 1 μm and 2.5 %, respectively.

8p cumeo3000 01-08-2018 26 0   Download

Alkali-Modified Soy Protein with ImprovedAdhesive and Hydrophobic Properties improved adhesive strength and water resistance have been observed in glue pre pared from trypsin modified soy protein (TMSP).

4p thanhtoyz 16-07-2016 39 2   Download