活性骨料

现行铁路客运专线标准中纳入了《矿物掺合料及外加剂抑制碱-骨料反应有效性试验方法》，从而使得部分砂浆棒膨胀率在0.2%~0.3%的碱-硅酸反应活性骨料的应用成为可行。

The testing method of inhibiting effects of mineral mixtures and additives on alkali-silica reaction is brought into railway standards currently in effect , so part of the alkali-silica reactive aggregates with mortar bar expansive 0.2 % ~ 0.3 % can be used .

用天然活性骨料和石英玻璃骨料研究了粉煤灰与沸石的复合对碱-硅酸反应（ASR）的影响。

The combined effect of natural zeolite and fly ash on alkali-silica reaction ( ASR ) of concrete was studied with natural alkali-reactive aggregate and quartz glass aggregate respectively .

检测一般活性骨料时也能够比较灵敏地区分出骨料的碱活性，说明这种检测方法值得进一步研究。

Those mean the new method deserve to be study further .

试验研究结果表明，溪洛渡水电站当地的玄武岩人工骨料为非活性骨料（部分玄武岩岩样含有一定量的慢膨胀的活性成分）。

The test results indicate that the local basalt crushed aggregate is non-active ( some basalt samples are partly active with curtain slow expansion ) .

常见的有石子物理力学性能差、石子化学性能不良、石子中混入煅烧过的石块及活性骨料引起的碱-骨料反应等。

Main causes of it are poor physical / chemical property and alkali aggregate reaction as there unexpectedly mixed with baked stone or re-active aggregate into the concrete batch .

中国已建的混凝土大坝中，有些也含有一定量的碱活性骨料，但由于采用了低标号水泥和大量的活性混合材，因此至今未发生碱骨料破坏反应；

Some concrete dams having been built in China adopt the alkali aggregate , due to adopt the low grade cement and lots of active mixing , the alkali-aggregate reaction has still not been found in those dams up to now .

在混凝土碱硅酸反应中，活性碱骨料与非活性骨料之间的比值存在最劣点。

There is the worst point between the active alkali aggregate and inactive aggregate in the concrete ASR .

因此，对于早龄期混凝土，活性碱骨料与非活性骨料之间的比例大小影响混凝土碱硅酸反应。

For early age concrete , the ratio between the active alkali aggregate and inactive aggregate haves an impact on concrete ASR .

混凝土骨料碱活性及碱骨料反应抑制方法的研究

Testing for Potential Alkali Reactivity of Aggregates and Study on the Method for Inhibiting Alkali - Aggregate Reaction

通过把制备的活性炭储能骨料和石墨导热功能基元材料加入混凝土中，取代其中的卵石和河砂，用普通混凝土的制备技术制备相变储能混凝土。

In this article graphite and active carbon energy storage aggregate were joined concrete , them replaced scree and river sand leave each other , normal method for preparing concrete and the phase-changing energy-storing aggregates were used .

碱活性反应具有缓慢、持续时间长的特征，在选用骨料时，必须严格控制活性骨料的使用。

The alkali active reaction has the characteristics of slow and long duration . It should strictly control the use of active aggregate as it is selected .

试验结果表明：主要成分为白云石的ZH与QX骨料，既具有较高的碱硅酸活性又具有高的碱碳酸盐活性；主要矿物成分为方解石的GY，LX骨料，则为非活性骨料。

The results show that ZH and QX , whose main component is dolomite , have higher alkali-silica activity and high alkali-carbonate activity , and GY and LX , whose main component is calcite , have no activity .