集料

提出并验证了四种具有实用价值的集料级配组成

The paper has put forward and testified four utilizable aggregate gradation .

化学组成中含有Na，K的含碱矿物，如各种长石、云母等，普遍存在于混凝土集料中。

The alkaline minerals which contain Na and / or K , such as feldspars , micas , etc. , exist commonly in the aggregate .

矾土集料耐火混凝土t－R关系试验研究

Study of the t-R Relation of Refractory Alumina Clinker Concrete

采用具有粒子动态混合密实功能的SPACE系统，实现了高集料体积分数模型砂浆结构的生成。

The SPACE system integrated with the dynamic mixing algorithm provided an opportunity to generate a model concrete with high volume fraction of aggregate .

利用MicrosoftVisualFoxPro辅助进行公路路面和路面基层集料组成设计的研究

Study on Aggregate Composing Design of Highway Pavement and Pavement Base by Microsoft Visual Foxpro

EPS（再生）轻集料混凝土保温砌块的研究

Research of concrete thermal insulation block with EPS ( regeneration ) light-weight aggregate

通过掺入冶金集料改变断裂面的脆性指数R，使混凝土的脆性减小并提高了混凝土的强度。

Replacing part of normal aggregate with metallic aggregate , the brittleness of concrete is decreased and the strength of concrete is increased .

集料ASR碱活性检测方法评述

A review on the testing methods for identifying the ASR reactivity of aggregate

水泥石与石灰石集料界面过渡区孔结构及其CH晶体亚微观结构的研究

An investigation on the pore structure and ca ( oh ) _2 crystal SUBMICROSTRUCTURE in the interfacial zone between cement paste and limestone aggregate

结果表明：CA比对沥青混合料的空隙率、矿料间隙率、粗集料骨架的形成、抗车辙性能和压实性能具有显著影响；

The results show that CA ratio has a significant effect on percent air voids , VMA , formation of the coarse aggregate skeleton , rutting resistance and densification characteristics of asphalt mixture ;

集料的形状指数与沥青混合料拌和流变特性k3呈线性关系。

Aggregate shape index and asphalt mixture mixing rheological properties have a good linear relationship .

研究发现：集料活性越高，LiF对膨胀抑制效果越好。

It is found that the higher the alkali reactivity of the aggregate was , the better the inhibiting effect of LiF showed .

通过对CA砂浆集料性质的反演，研究集料的特性，进行混合料设计和性能分析，确定新材料的合理配方；

Testing the characteristics of CA mortar composition repeatedly , researching on the feature of the material and making a design and property analysis of the mixed material can determine a rational composition of new material .

集料颗粒形状对骨架结构体积指标及SGC压实特性影响研究

Research on Influence of Particle Shape of Coarse Aggregate on Volume Index of Skeleton Structure and SGC Compacting Characteristics

集料碱活性检测是预防碱集料反应（AAR）的重要措施。

Identifying the alkali reactivity of aggregate is a most important measure to prevent form alkali aggregate reaction ( AAR ) .

通过实验检测了减水剂（G）、引气剂（Y）、微细集料（H）复合添加配制的混凝土的抗渗、抗蚀及部分强度性能。

Performances of permeability resistant , corrosion resistant as well as compressive strength of the concrete mixed with water reducing agent ( G ), air entraining admixture ( Y ) and micro aggregate ( H )( GYH concrete ) were studied by experimental detecting .

由于辉绿岩为硅质集料，辉绿岩碎石与水泥石形成界面较石灰石碎石与水泥石所形成界面处的Ca（OH）2晶体更小，且界面显微硬度更高，表现出的宏观力学性质更好。

The dimension of Ca ( OH ) 2 crystals of the ITZ of the diabase concrete is smaller and micro-hardness of that is higher , because the diabase aggregate is the siliceous one . And the diabase concrete have the better mechanical property .

研究了不同反应条件下新合成的化学外加剂CaX对两种工程实际使用集料ASR膨胀的影响。

The effect of a new type of chemical admixture CaX on ASR expansion of mortar with two kinds of aggregate has been investigated under different reaction condition .

粉煤灰对不同集料和同种集料不同养护温度下ASR膨胀抑制效果差异，主要与ASR历程有关，即与集料ASR本身特性有关。

The dependence of the suppressing effect of fly ash on alkali reactivity and conserving temperature is attributed to the different ASR behaviors for various aggregates and at various temperatures .

轻集料混凝土（LWAC）由轻质多孔集料和水泥石胶结而成。

Light weight aggregate concrete ( LWAC ) is composed of light weight poriferous aggregate and cement paste .

通过大量路用性能试验，得到AC-16密级配沥青混合料集料的体积分形维数与路用性能指标之间的相关变化规律。

The correlations between road performance and the fractal dimension of aggregate volume of AC-16 are obtained from road tests .

将从废弃混凝土中分离出的硬化水泥浆体和细集料粉磨之后经400650和850℃煅烧2h，制成再生水泥混合材。

Ground the solidified cement slurry and fine aggregate separated from waste concrete and then calcinated them respectively at the temperature of 400 , 650 and 850 ℃ for two hours , and so they became reclaimed cement admixture .

试验研究了集料最大粒径、集料含量对抗压强度达200MPa的活性粉末混凝土强度、动弹模量等力学性能的影响；

Further , the influences of amount and maximum diameter of aggregate on strength and dynamic elastic modulus of reactive powder concrete was investigated by experiments .

在早期UFA对强度的贡献主要由密实填充和微集料效应提供，14d后火山灰效应开始发挥作用。

The dense packing and micro-aggregate effect of UFA play an important role in improving early compressive strength , but 14 days later , the pozzolanic effect started to play a role in improvement of strength .

在假定模型混凝土中集料的最小粒径为1mm的前提下，以符合Fuller分布为例，研究了模型混凝土中集料粒径分布和集料体积分数对邻近集料表面最近间距分布的影响。

In this contribution , influences of size range and volume fraction of aggregates were studied on the nearest surface distance distribution between neighboring aggregate grains in model concrete for assumedly Fuller-distributed aggregate system with the minimal size of 1 mm .

根据粗集料的单因素捣实试验，确定了辉长岩Sup-16级配骨架最优结构。

On the basis of the single factor dry rodded test of coarse aggregate , the optimal framework structure of gabbro Sup-16 gradation is given out .

把砂浆试件沉入80℃碱液中，测量试件经12d的相对变形值，以判定集料的碱活性状况，是最可靠、简单的快速试验方法。

By way of dipping the mortar specimen into an 80 ℃ alkali-solution to get its relative deformation after 12-day is by far the most reliable , simplest and quickest experimental method to determine the reducing activity of aggregate .

研究了LC45高强轻集料混凝土掺加磨细矿渣和粉煤灰后，在强度、收缩、抗冻、抗氯离子渗透性能以及弹性模量方面的影响。

The influences of the fly ash and ground slag on performances of the strength , contraction , frost-resistance , impervious of Cl-and elasticity modulus of the LC45 light-weight concrete was researched .

结果表明：采用长江粉细砂和石灰，经混料、成球、蒸压可制得性能较好的粉细砂固结集料；由这种集料可配制出C20等级左右的混凝土；

The results showed that through mixing extra-fine sand with lime , shaping to form the small balls and then autoclaving it , extra-fine sand could be solidified into a kind of solid coarse aggregates , and by using this aggregates , a C20 concrete could be manufactured .

为了改善二灰碎石基层的路用性能，使粗集料（31.5mm～4.75mm）能够形成骨架结构，本课题通过振实试验方法研究了不同粒径粗集料混合后的空隙率。

In order to improve the pavement performance of lime-fly ash stabilized aggregates and make coarse aggregates form skeleton , the paper confirm the rate of voids of the mixed aggregates by the method of vibrating test .