Durability properties of sialite concrete and cement concrete at the same mixing proportions and the same experimental condition were studied in the paper.
凝石是一种新型硅铝基胶凝材料,其耐久性能引人关注,本文对比研究了相同实验条件下,相同配合比的凝石混凝土和水泥混凝土的耐久性能,重点研究了抗碳化性能、抗氯离子渗透性能和抗渗性能,用压汞法测试了水化28d的凝石净浆和水泥净浆的孔隙率和孔结构,并用SEM观察了凝石混凝土和水泥混凝土的界面过渡区。
A practical directional blasting demolition of artificial reinforced concrete trees is introduced.
介绍了一组人造钢筋混凝土树的定向爆破拆除实例,论述了预处理施工方法、爆破参数的确定以及综合防护措施,对今后类似工程具有一定的参考价值。
Square stepping stone. Use for concrete, exposed aggregate, or tile.
方形踏脚石。用于混凝土、混凝土石块或瓷砖。
Hexagon shaped stepping stone. Use for both concrete and exposed aggregate.
六边形踏脚石。用于混凝土和混凝土石块。
Round stepping stone. Use for concrete, exposed aggregate, or wood.
圆形踏脚石。使用混凝土、混凝土石块或木材。
limestone coarse aggregate concrete
石灰石粗骨料混凝土
Reinforced Concrete & Brick Structure
钢筋混凝土及砖石结构
alunite expansion agent for concrete
明矾石混凝土膨胀剂
concrete block and rock-mound breakwater
混凝土方块堆石防波堤
The gravel ingredient of concrete.
石碴组成混凝土的砂料
concrete, sand, stone and cement proportioner
混凝土、砂、石、水泥配料机
Research on Frost-Damaged Concrete Strengthened with Polypropylene Fiber Reinforced Fine Aggregate Concrete
聚丙烯纤维细石混凝土加固冻害混凝土的研究
Design of submerged concrete high toe wall of CFRD
混凝土面板堆石坝潜没式混凝土高趾墙设计
The workmen mixed sand, gravel, and cement to make concrete.
工人们把沙,石子和水泥混和成混凝土。
a block of concrete, granite, marble, etc
一块混凝土砌块、 花岗石、 大理石等.
Application of Limestone Powder in the Ordinary Concrete
石灰石粉在普通混凝土中的应用研究
Joint structure model test of asphalt concrete core of embankment dams
土石坝沥青混凝土心墙接头模型试验
flag stone of cement, concrete or artificial stone (excl. agglomerated salte)
石板,水泥、混凝土或人造石料制（不包括凝集板岩）
Experimental Research on Clay Concrete and Its Applying Used as a New Material for Earth Dam Anti-seepage Wall;
土石坝防渗墙粘土混凝土材料研究与工程应用
A rounded mass of mineral matter found in sedimentary rock.
混凝土发现于沉积岩中的圆形矿石块
