砼

基于BP网络的砼碳化深度预测与分析

A Study on Carbonization Depth Forecast of Concrete Structures Based on BP Neural Networks

大跨RC有支架施工拱桥砼时效分析

Analysis of concrete aging effect in long-span RC arch bridge

浅谈SBS改性沥青砼的施工

The Construction of SBS Modified Bitumen Concrete

随着水胶比的增大，砼3d和28d抗压强度显著降低，坍落度明显增大；

With the increase of W / B ratio , 3 d and 28 d compressive strength decrease and the slump increase notably ;

本文首先根据误差传递公式导出公路钢筋砼梁桥抗力统计参数KR，VR的计算公式。

According to the theory of error transfer , a formula of statistical parameters , V_R and K_R , of resisting force in highway concrete beam bridge is derived in this paper .

16m先张法预应力砼梁板结构性能试验研究

Experimental Study on Properties of 16m Pretensioned and Prestressed Concrete Beam-Slab Structure

SRC巨柱－筒体抗侧力体系，介绍了钢－砼混合结构（即SRC结构）的设计方法及SRC结构在超高层建筑中发挥的作用。

The design method of the SRC resisting system was shown . The effect of SRC system on super high-rise building was discussed .

大新高速公路沥青砼路面通车运营己1a多了，从整体看，除控制路基及路面基层质量外，在沥青面层施工中采取了一系列有效措施。

The paper discussed the quality control of Da-Xin Expressway bitumen concrete pavement , and proposed some relative measures for reference .

隧道施工机械与监测仪具和设备，包括：TBM的应用与展望；钢钎维砼支护及其喷射机械手；

Machinery of tunnel construction and equipment of monitor including the application and prospect on TBM , steel fibre spurting concrete supporting and its spurting machinery ;

对京石高速公路路面进行罩面补强，采用聚酯纤维砼、SBS改性沥青及玄武岩，可有效的防止病害的产生，值得推广应用。

The cover-layer construction for Jing-Shi expressway applying polyester fiber concrete , SBS modified asphalt and basalt , can prevent effectively the disease of pavement , and is worth being popularized .

BDF砼薄壁筒体构件及在现浇空心楼板中的应用

Elementarily Talking about BDF Concrete Thin Wall Canister Style Component and the Application in the Cast-in-place Hollow Floor

介绍了40m砖砼烟囱的定向爆破拆除的设计方案，参数选取，安全措施及爆破效果。

The design program , parameters selection , safety measures and blasting effectiveness of directionally demolishing a 40 m-high brick-concrete chimney by blasting are introduced .

研究了2个早熟禾（Poapratensis）品种Nublue、Kenblue建植在植被砼和田园土的表型可塑性（phenotypicplasticity）。

The phenotypic plasticity of two varieties of Poa pratensis ( Nublue and Kenblue ) in vegetation concrete and garden soil was studied .

膨胀剂WHU对自密实砼收缩及渗透性的影响

The Influence of Expend Agent WHU on Shrinkage and Permeability of Self-compacting Concrete

试样抽检和观测表明：用MgO量为3.5%～5.0%的微膨胀中热水泥配制砼，具有微膨胀性，最大膨胀量约55μm；

The sample testing and observation show that the concrete made of micro-expansion medium heat cement with MgO in the range of 3.5 % ~ 5.0 % has the micro-expansion property with the max. expansion of ca. 55 um .

本文介绍了应用预应力砼建筑结构设计系列软件（PRCS）进行结构的预应力筋方案设计与优化的方法。

This paper introduces an optimum method for scheme of prestressing tendon of prestressed concrete building structures by using PRCS program .

LC-2型全自动监控式拉槽机及拉槽法建造地下连续薄砼防渗墙技术

Full-automatically Controlled LC-2 Trencher and the Trenching Method of Constructing the Thin Concrete Diaphragm Wall for the Proof-permeation

龙滩碾压砼的胶凝材料用量按不同高程上、中、下三个层次进行碾压砼级配选择.上部水泥60kg／m3.粉煤灰90kg／m3；摊铺机工作装置与碾压砼相互作用动态特性研究

The proportion of cementitious material contents of the rolled concrete should be different on different levels of the dam . Study on the dynamic properties of the interaction between working installations of paver and roller compacted concrete

介绍了寒冷地区C50砼地面的原材料选择，配合比选定，砼供应及运输、浇捣、养护及质量控制。

This article describes the selection of constituent materials and the choice of mix design for C50 floor , as well as its supply , transportation , vibration , consolidation , curing and quality control .

提出了影响塑性砼变形性能的几个因素。

Several factors affecting deformation characteristics of plastic concrete are introduced .

新型砼外加剂在地下室结构自防水中的应用

Additive of New Concrete Used on Water Proof in Basement Frame

钢筋砼套迭梁力学性能的试验研究及计算

Experimental Study on Mechanical Properties of Reinforced Concrete Casing Compound Beam

长治市某综合楼基础大体积砼施工

Construction for mass concrete of foundation of Changzhi a multi-purpose building

现浇砼底板后浇带施工处理方法

Construction method for cast in place concrete and bottom pouring band

钢丝网砼墙板结构分析和设计

Structural Analysis and Design of the Concrete Wall with Steel Meshwork

石灰岩地区砼灌注桩抽芯检测实例

The example of core-collection check of concreting pile in limestone area

钢筋砼杆系结构的非线性全过程分析

Full - Range Nonlinear Analysis of Reinforced Concrete Member System Structure

钢筋砼框架结构设计中有关问题的探讨

Some problems are inquired into concerning design of reinforced frame structure

高强预应力砼电杆受力性能分析

Ultimate Capacity and Deflect Analysis of High-strength Prestressed Concrete Electricity Poles

高等级公路水泥砼路面改造技术探讨

Discussing the reconstruction techniques for higher level highway concrete pavement reconstruction