ALKALI-SILICA REACTION TEST, ACCELERATED MORTAR BAR TESTER AND TEST METHODS This invention is about accelerated mortar bar test device (1) and test method (100). Result of alkali-silica reaction length change occurs on the concrete samples that used in construction industry. Accelerated mortar bar...
One of the possible applications is utilizing waste glass in concrete; however, alkali–silica reaction (ASR) is of major concern. In this study, tests were conducted by applying three different procedures: ASTM C1293, RILEM AAR-2, and microbar test methods. In microbar testing, glass ...
1) alkali–silica reaction 碱–硅酸反应 1. The effect of two kinds of alkali-bearing aggregates, nepheline syenite and alaskite onalkali–silica reaction(ASR) were studied using a new accelated test method, by which specimens were cured in steam at 80 ℃. ...
silicate or sodium carbonate ABFSC binder incorporating either an innocuous control aggregate, an aggregate that is known to be reactive by way of ASR or ACR in ordinary Portland cement (OPC) concrete or an aggregate that contains reactive silica although a good service record has been exhibited....
Alkali silica reaction (ASR) occurs due to chemical reaction between hydroxyl ions in the pore water within the concrete matrix and certain forms of silica. This reaction could lead to strength loss, cracking, volume expansion and potentially failure of the structure. This manuscript reports findings...
Alkali-silica reaction (ASR) can cause expansion and cracking of concrete. Despite significant progress over the past 80 years, the molecular structures of the ASR products remain poorly understood. These reaction products are present in very small amounts within concrete aggregates, which severely ...
Alkali-Silica ReactionThe reaction between alkali in cement and noncrystalline or porous silica in aggregate, in the presence of moisture, that may cause expansion and cracking of concrete. "Concrete cancer" Alkali silica...doi:10.1007/978-3-319-12127-7_11-1Brian R. Marker...
3) alkali–silica reaction 碱–硅酸反应 1. The effect of two kinds of alkali-bearing aggregates, nepheline syenite and alaskite on alkali–silica reaction(ASR) were studied using a new accelated test method, by which specimens were cured in steam at 80 ℃. 采用80℃蒸汽养护快速实验方法,...
Scanning Electron Microscopy Image Analysis (SEM-IA) was used to quantify the degree of alkali silica reaction in affected microbars, mortar and concrete p... D M.,Thomas - 《Fuel & Energy Abstracts》 被引量: 137发表: 1996年 Standard test method for determination of length change of concret...
The study aims to investigate the influence of limestone calcined clay cement (LC3) on the alkali-silica reaction (ASR). Kinetics and sequence of ASR formation were monitored using the model reactant method. Accelerated mortar bar test (AMBT) was also conducted to evaluate the effect LC3 in ...