Search results

Control items follow the minimum requirements of current national or professional standards and prohibit the use of the backward raw materials or production processes that have more adverse impact on product quality or environment.
The mixer vehicle is driven to the side of vehicle-washing pool, the tank's inner side of mixer vehicle is cleaned with circulating water of mixing plant.
As a comprehensive technology property, workability includes the contents in three aspects of flowability, water retention and cohesiveness; it depends on, to some extent, cement type, sand ratio of aggregate, water-cement ratio and the like, thus the testing for it can be carried out in the following aspects:(1) If the water-cement ratio is excessive low, the cement content may be properly increased to improve the consistency of cement paste; in the contrary case, if the water-cement ratio is excessive high, the flowability of cement paste would be enhanced and slurry may flow from mixture to further influence the concrete strength.
The most reasonable sand ratio in concrete mixing shall ensure the mixture flowability and also avoid the segregation phenomenon. [7] (3) Different types of cement require different water contents to reach the standard consistency, therefore, the type of cement also has enormous influence on concrete workability. (4) If both the water content and cement content are fixed, the workability of concrete may be improved by adding suitable admixture to improve the construction effect.
The water in most of mixing plants is tap water of groundwater by abstraction, therefore, the water consumption source can be changed by rainwater collection and water saving can be realized by building and using water reservoir and ditch to collect natural water and partial groundwater as well as using the above water in production of concrete and cleaning process of equipment.

Anthocyanins and other phenolics were adsorbed onto the column; sugar, acids and other water-soluble compounds were eluted with more than 2 BV (bed volumes) of distilled water until the wash water was clear.
Similarity analysis was performed using professional software (Similarity Evaluation System for Chromatographic Fingerprint of Traditional Chinese Medicine, Version 2004 A) developed by the Chinese Pharmacopoeia Committee.
The most common polar solvents in industry are water and ethanol.
Acidified water, anhydrous ethanol and 20-60% (v/v) ethanol had almost the same effect.
Third, these organic solvents are more expensive than water.

Water was added through one petcock until it emerged from the other.
BWR=Mw W × Ms × 100 (1) where BWR = bleeding rate of water (%); Mw = accumulated weight of the bleeding water (g); Ms = total weight of the fresh concrete (g); and W = weight proportion of water in the fresh concrete (%).
The results of bleeding rate of water of concrete are presented in Fig.6.
Review of Professional Management, 21(2). https://doi.org/10.1177/09728686231189028
Adsorption and Ionization of Carboxylic Acids at the Air/Water Interface.

Technology Transport 650-699 Water Treatment and Supply 700-799 The Arts.
Grain processing TD429.5-480.7 Water purification.
Water treatment and conditioning.
Saline water conversion TC401-50 River, lake, and water-supply engineering (General) TD481-493 Water distribution systems Conclusion A system and method for document management in an industry where mass volumes of drawings are generated and stored has been presented.
The method has been used to catalogue and control paper drawings in a highly professional manner and with good results.

（4）Drainage measures of domestic water and construction wastewater.
Use insulated copper tubular busbar instead of insulated copper rectangular bus; actively popularize metal halide lamp with high luminous efficiency and long life; popularize T8 or T5 tube lighting of thin type (≤26mm); use energy saving transformers. 4）Measures of saving water and the use of water （1）Set up rain gathering and treatment system on the construction site to make full use of underground water and rain and save water
（2）Water saving measures for the use of concrete mixing water and maintenance water
（3）Water use of concrete mixing stands, washing vehicles and cleaning roads and areas
（4）Consider water saving system and recycling of domestic water when constructing living facility. 5）Measures of saving land and construction land protection （1）The general layout.

The best rheological performance in your study occurred at 1% PCE and 5% CSA, where the yield stress was in the 200–500 Pa range, corresponding to self-compacting behavior at low water contents.
Further, with respect to early compressive strength, these mixtures could be removed from the formwork about 24 hours after placement, as this is when the compressive strength started to develop which was due to the rapid hydration of CSA stabilizing the SCEC by binding water via ettringite formation.
The lack of data on chloride penetration, carbonation depth, or water absorption coefficient further limits the development of predictive service life models for SCEC. 5.6.
Inhibitors of adopting stabilised earth construction to address urban low cost housing crisis: An understanding by construction professionals.

As for the water seepage, the water molecule diameter is approx 0.3 x 10-6 mm to be able to go through any seam seen by naked eyes, therefore, there shall not be any crack with a view of theory.
The strength and volumetric stability will be lost for the cementing materials made with gypsums and insulation mortar made with polystyrene granule soaked in water so as to cause denuding and peeling-off.
Utilizing the poor water resistance putty, the cracks are caused due to the sparging when it is soaked in water since it is a poor water resistant putty.
Their surface features are peeled coating, cracks found on anti-tensile mortar and their major causes are due to improper handling of plinth structure, no low density insulation layer is prepared underneath the floor and non effective sealing is done on the water dispersing place to result in wall damped, coating soaked in water and finally the coating layer and crack-proof mortar layer incurring cracks.
The Analysis of the Cracks on External Wall Insulation Surface [J], Journal of Liaoning Professional Agricultural Technology Institute, 2008.10 (6):37~38,in chinese

Of particular concern among industry health and safety professionals is the animal toxicology studies of refractory ceramic fibers, which have indicated the development of lung cancers and mesothelioma, a rare cancer of the pleura.
Jo is the heat flux to the "outside", existing by virtue of water-cooling or forced or convective air-cooling of the shell.

Dishwasher corrosion of glass and the resulting formation of unacceptable appearance limits the lifetime of glass tableware in private households and even more in professional catering business where constant replacement of glass tableware is a considerable cost factor.
Introduction Although glass is considered to be a material with high chemical durability, when contacted with water vapor, glass articles may undergo some changes at the surface because of atmospheric corrosion which is also called "weathering" effect due to unsuitable warehouse or household stock conditions.

According to ISO 14040 series of standards, the LCA methodological framework consists of the following four parts: (1) goal and scope definition, which specifies the determination of the goals, the system boundary, the functional unit, and etc; (2) life cycle inventory analysis (LCI), which specified that the data related to the energy consumption and emissions to air, discharges to water and soil in each unit process and stage within the product life cycle shall be determined, and classified under several major headings, and created an inventory; (3) life cycle impact assessment (LCIA), which describes the quantitive evaluation of the inventory data; (4) life cycle interpretation, where the results should be delivered, the conclusions reached, limitations explained and recommendations provided.
[14] Professional Standard of the People's Republic of China.
[15] Professional Standard of the People's Republic of China.