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Alkali reactivity
| Глоссарий по архитектуре и конструкциям |
Of a concrete aggregate, its susceptibility to alkali-aggregate reaction. alkali resistance 1. the degree to which a paint resists reaction with alkaline materials such as lime, cement, plaster, soap, etc.; a necessary property for paints in bathrooms, kitchens, laundries. 2. the degree to which a porcelain enamel will resist attack by aqueous alkaline solutions. alkali-silica reaction in portland cement, the reaction between the alkalies and particular siliceous rocks and/or minerals which are present in some aggregates; may result in abnormal expansion and cracking of concrete under service conditions.
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Alkali, английский
- Alcalin (nom)
- Any substance having basic (as opposed to acidic) properties. in a restricted sense it is applied to the hydroxides of ammonium, lithium, potassium and sodium. alkaline materials in lubricating oils neutralize acids to prevent acidic and corrosive wear in internal combustion engines.
- Щёлочь
- A substance which, when dissolved in water, forms a solution with a ph more than 7.
- Any of the various chemically active bases such as the soluble salts of metals, e.g., the water-soluble salts of sodium and potassium which occur in constituents of concrete and mortar that may result in deleterious expansion. alkali-aggregate reaction a chemical reaction in mortar or concrete between alkalies from portland cement or other sources and certain constituents of some aggregates; under certain conditions, deleterious expansion of the concrete or mortar may result.
- One of many substances which neutralise acids and form salts (note: the uk plural is alkalis, but the us plural is alkalies.)
- A sodium-carbonate, potassium-carbonate or, more commonly, any bitter-tasting salt or water, generally occurring in arid and semiarid regions.
Alkali, английский
Alkali, финский
Alkali bentonite, английский
Alkali earth, английский
Alkali feldspar, английский
Group of feldspars composed of mixtures, or mixed crystals, of
Alkali flat, английский
Мелкий периодически пересыхающий солоноватый водоем all-news format вид радиопередачи, когда каждые четверть часа передается краткая сводка последних известий, а в начале часа - подробная сводка новостей
Alkali garnet, английский
Alkali granite, английский
Alkali halide crystal, английский
Alkali ion diode, английский
Sensor type for halogen gases. in this device, positive ions (cations) of an alkali metal are produced on the heated surfaces (usually platinum) of the diode. one electrode is at a negative potential and attracts cations that are released when a halogen gas passes between the sensor electrodes. provides an output current to operate the indicator on the halogen leak detector.
Alkali metal, английский
Alkali metal beryllium borate fluoride, английский
(na,k)bebo3f2
Alkali metals, английский
A group of soft, very reactive elements that includes lithium, sodium, and potassium.
Alkali resistance, английский
Alkali soil, английский
A soil, with salts injurious to plant life, having a ph value of 8.5 or higher.
Alkali soluble, английский
Alkali subbentonite, английский
Alkali water, английский
A water having a bitter or sodalike taste. if strongly alkaline, the water is unfit to drink or use in mixing cements.
Alkali [is, n], латинский
Susceptibility, английский
- Lack of resistance to a disease ‘…low birthweight has been associated with increased susceptibility to infection’ [east african medical journal] ‘…even children with the milder forms of sickle-cell disease have an increased frequency of pneumococcal infection. the reason for this susceptibility is a profound abnormality of the immune system’ [lancet]
- Восприимчивость (к болезни)
- Склонность; чувствительность; восприимчивость о ~ to corrosion подверженность коррозии, склонность к коррозии; ~ to frost чувствительность к морозу; подверженность замерзанию; малая морозостойкость; ~
- Dimensionless property describing a material’s response to an external magnetic field.
Resistance, английский
- Property of a conductor that opposed the current flow produced by a given difference of potential. the ohm is the practical unit of resistance.
- Уровень сопротивления - уровень цен, при котором активные продажи могут приостановить или развернуть тенденцию к повышению;
- Сопротивление (параметр)
- Сопротивление
- Сопротивление, т. е. уровень цен, при котором активные продажи могут приостановить или развернуть тенденцию к повышению.
- 1. the ability of a person not to get a disease 2. the ability of bacteria or a virus to remain unaffected by a drug the bacteria have developed a resistance to certain antibiotics. 3. opposition to a force
- Resistencia
- Устойчивость; резистентность resource for child health (reach)
- Устойчивость; резистентность
- The property of opposing movement, for example [1] electrical conductors offer resistance to the flow of electricity and dissipate some of its energy, usually as heat. [2] water resists the movement of vessels or other objects by parasitic drag, consuming some of the power available to drive the vessel forward.
- Imperviousness of the coating to mechanical, chemical, physical or weather influences
- Capacity of a member or component, or a cross-section of a member or component of a structure, to withstand actions without mechanical failure e.g. bending resistance, buckling resistance, tension resistance
- A material’s ability to restrict the flow of electrical current through itself. measured in ohms.
- The opposition of a circuit to the flow of current . resistance is measured in ohms, and can be calculated by dividing the voltage by current.
- The ability to impede (resist) the flow of electric current. with the exception of superconductors, all substances have a greater or lesser degree of resistance. substances with very low resistance, such as metals, conduct electricity well and are called conductors. substances with very high resistance, such as glass and rubber, conduct electricity poorly and are called nonconductors or insulators.
- An effective upper bound on prices achieved because of many willing sellers at that price level.
- Capacity of a component, or cross section of a component of a structure to
- The opposition to the flow of an electrical current through a conductor or circuit that does not include inductive or capacitive elements. it can be expressed as the ratio of the applied voltage to the current.
- Resistance is the opposition to the flow of an electrical current through a conductor. its unit is the ohm.
Particular, английский
A частный; конкретный grammar partitioned a разделённый на части sequence 1 одна из базовых операций компьютерной обработки текстов; в каче- стве данных берутся текст либо сегмент текста, грамматика и цель разбора, а на выходе получается удовлетворяющее цели множество значений категориальной отнесённости сегментов в виде, например, дерева разбора. 2 применяется запоминание также и гипотез, выдвигаемых при разбо- ре, и результатов их проверки – м. кэй. 3 используется, в частности, для разбора арифметических выражений. partitioning n членение sentence ~ членение предложений (напр., при переводе )
Aggregates, английский
- Сводные показатели; итоговые данные
- Агрегаты
- Вода, содержащаяся в заполнителях; вода, поглощённая заполнителями; ~ for making concrete вода затворения
Conditions, английский
- The terms of surrender.
- Обстоятельства; условия; режим
- Грузовая устойчивость ~ of crane during lifting operations грузовая устойчивость крана ~ of geometrical shape геометрическая неизменяемость ~ of slope устойчивость откоса ~ of volume постоянство объёма
- Наблюдения за работой сооружений в условиях эксплуатации
- Работа конструкции в условиях эксплуатационных нагрузок
- A set of specified constraints and parameters that are part of the rights group bundled into a rights label. these are enforced at the time of consumption.
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Weatherseal channel, английский
Of a door, a top-closing channel which is set in mastic with its flanges downward.
Vitrification, английский
Of a clay product, the condition resulting when kiln temperatures are sufficient to fuse grains and close the surface pores, making the mass impervious.
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