Compressive Strength and Block-Mortar Bond of a New-Type of Insulation Hollow Block

Wu, Jian; Bai, Guoliang; Kang, Kewu; Liu, Ya; Wang, Peng; Fu, Shaojun

doi:10.1088/1757-899x/381/1/012024

Cited by 3 publications

(1 citation statement)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In view of the above problems, Fangbo Wu (2005) developed the first nonbearing horizontal-hole interlocking hollow concrete block (HHIB) in 2006. This type of HHIB was in a box shape and designed as an infilled wall material.…”

Section: Introductionmentioning

confidence: 99%

Compressive performance of new types of load-bearing horizontal-hole interlocking concrete hollow blocks

Liu

Zhang

Liu

et al. 2018

Advances in Structural Engineering

View full text Add to dashboard Cite

Two series of load-bearing horizontal-hole interlocking hollow concrete blocks, referred to as H-shaped series and cross-shaped series, were developed, including three geometric types: type BH-290 (H-shaped), type BH-240 (H-shaped), and type BC-240 (cross-shaped). The research presented in this article investigated the compressive behavior of the proposed load-bearing horizontal-hole interlocking hollow concrete blocks and aimed at analyzing the influence of geometric parameters on the block capacity. First, compressive tests of the horizontal-hole interlocking hollow concrete blocks were carried out. The compressive strength, elastic modulus, and compressive failure mechanism were analyzed. Second, the feasibility of the finite element analysis model was verified by experimental results presented in this article, as well as by available test data from other researchers. The influences of vertical ribs, horizontal ribs, and concrete strength on the compressive strength of horizontal-hole interlocking hollow concrete blocks were investigated. Ultimately, based on the numerical modeling results, linear equations were proposed to predict the compressive strength of H-shaped series and cross-shaped series blocks. The results show that the compressive strengths of types BH-240, BH-290, and BC-240 are 15.9, 13.4, and 13.0 MPa, respectively. For the H-shaped series, the core horizontal rib is the key part that can significantly constrain the vertical ribs so that the block can achieve higher compressive bearing capacity. For the cross-shaped series, core horizontal ribs cannot improve the compressive strength of the block because core horizontal ribs and joints near them become damaged early. Improving the concrete strength and the width of the vertical rib can effectively improve the compressive bearing capacity for both H-shaped and cross-shaped series blocks. The accuracy of the proposed equations for predicting the compressive strength of H-shaped and cross-shaped blocks is acceptable, according to the current verification.

show abstract

Section: Introductionmentioning

confidence: 99%

Compressive performance of new types of load-bearing horizontal-hole interlocking concrete hollow blocks

Liu

Zhang

Liu

et al. 2018

Advances in Structural Engineering

View full text Add to dashboard Cite

show abstract

Influence of prism geometry on the compressive strength of concrete masonry

Abasi

Hassanli

Vincent

et al. 2020

Construction and Building Materials

View full text Add to dashboard Cite

Experimental Evaluation of Compressive Properties of Early-Age Mortar and Concrete Hollow-Block Masonry Prisms within Construction Stages

Abasi,

Banting,

Sadhu

2024

Materials

View full text Add to dashboard Cite

Early-age masonry structures require temporary support until they achieve full strength. Nevertheless, there is a limited understanding of the properties of freshly laid masonry and the design of newly constructed, unsupported masonry walls. This situation has led to numerous instances of structural damage and injuries to workers, prompting conservative construction bracing techniques. This paper presents comprehensive experimental studies on early-age mortar cubes and masonry prisms to assess the effects of curing time on the compressive properties of masonry assemblies, which is necessary for the design of temporary bracing. The change in modulus of elasticity and compressive strength of masonry prisms and mortar with curing time has been experimentally assessed. The results indicate that the compressive strength of freshly cast mortar cubes is relatively insignificant until approximately 24 h after construction, when it was observed to increase logarithmically. Regarding the performance perspective, the compressive strength of early-age masonry prisms is inconsiderable, less than 15% of full strength during the first day after construction. By contrast, regarding the life safety perspective, the compressive properties of a mortar joint within a masonry assembly (which is of more practical interest) appear to have no effect on the failure strength of concrete masonry prisms over the range of ages tested. The failure modes of the early-age mortar cubes and early-age masonry prism samples depend on the curing time, and different failure modes occurred before and after the start of the primary hydration phase, which is 20.8 h after construction. It is anticipated that the proposed research will provide valuable material properties leading to efficient design of control devices (e.g., temporary bracing) and improved guidelines for concrete-block masonry construction.

show abstract

Compressive Strength and Block-Mortar Bond of a New-Type of Insulation Hollow Block

Cited by 3 publications

References 10 publications

Compressive performance of new types of load-bearing horizontal-hole interlocking concrete hollow blocks

Compressive performance of new types of load-bearing horizontal-hole interlocking concrete hollow blocks

Influence of prism geometry on the compressive strength of concrete masonry

Experimental Evaluation of Compressive Properties of Early-Age Mortar and Concrete Hollow-Block Masonry Prisms within Construction Stages

Contact Info

Product

Resources

About